More PubSubHubbub

https://github.com/FreshRSS/FreshRSS/issues/312
Show whether PubSubHubbub is enabled in the Web interface of feed
configuration.
When PubSubHubbub is used, do not pull refresh so often (hard-coded to
max once per 24h for now).
Improved logic for lease renewal, and some detection of lease problems.
Updated read-me and changelog.

1 files changed, 16 insertions, 18 deletions

diff --git a/README.md b/README.md
index 089bbd780..4430560fe 100644
--- a/README.md
+++ b/README.md
@@ -1,11 +1,12 @@
 * [Version française](README.fr.md)
 
 # FreshRSS
-FreshRSS is a self-hosted RSS feed agregator like [Leed](http://projet.idleman.fr/leed/) or [Kriss Feed](http://tontof.net/kriss/feed/).
+FreshRSS is a self-hosted RSS feed aggregator such as [Leed](http://projet.idleman.fr/leed/) or [Kriss Feed](http://tontof.net/kriss/feed/).
 
-It is at the same time light-weight, easy to work with, powerful and customizable.
+It is at the same time lightweight, easy to work with, powerful and customizable.
 
 It is a multi-user application with an anonymous reading mode.
+It supports [PubSubHubbub](https://code.google.com/p/pubsubhubbub/) for instant notifications from compatible Web sites.
 
 * Official website: http://freshrss.org
 * Demo: http://demo.freshrss.org/
@@ -14,28 +15,25 @@ It is a multi-user application with an anonymous reading mode.
 ![FreshRSS logo](http://marienfressinaud.fr/data/images/freshrss/freshrss_title.png)
 
 # Note on branches
-**This application is still in development!** Please use the branch that suits your needs:
+**This application is under continuous development!** Please use the branch that suits your needs:
 
 * Use [the master branch](https://github.com/FreshRSS/FreshRSS/tree/master/) if you need a stable version.
 * [The beta branch](https://github.com/FreshRSS/FreshRSS/tree/beta) is the default branch: new features are added on a monthly basis.
-* For developers and tech savvy persons, [the dev branch](https://github.com/FreshRSS/FreshRSS/tree/dev) is waiting for you!
+* For developers and tech savvy persons willing to help testing the latest features, [the dev branch](https://github.com/FreshRSS/FreshRSS/tree/dev) is waiting for you!
 
 # Disclaimer
-This application was developed to fulfill personal needs not professional needs.
-There is no guarantee neither on its security nor its proper functioning.
-If there is feature requests which I think are good for the project, I'll do my best to include them.
-The best way is to open issues on GitHub
-(https://github.com/FreshRSS/FreshRSS/issues).
+This application was developed to fulfil personal needs primarily, and comes with absolutely no warranty.
+Feature requests, bug reports, and other contributions are welcome. The best way is to [open issues on GitHub](https://github.com/FreshRSS/FreshRSS/issues).
 
 # Requirements
 * Light server running Linux or Windows
 	* It even works on Raspberry Pi with response time under a second (tested with 150 feeds, 22k articles, or 32Mo of compressed data)
-* A web server: Apache2 (recommanded), nginx, lighttpd (not tested on others)
-* PHP 5.2.1+ (PHP 5.3.7+ recommanded)
+* A web server: Apache2 (recommended), nginx, lighttpd (not tested on others)
+* PHP 5.2.1+ (PHP 5.3.7+ recommended)
 	* Required extensions: [PDO_MySQL](http://php.net/pdo-mysql) or [PDO_SQLite](http://php.net/pdo-sqlite), [cURL](http://php.net/curl), [GMP](http://php.net/gmp) (for API access on platforms < 64 bits), [IDN](http://php.net/intl.idn) (for Internationalized Domain Names)
-	* Recommanded extensions : [JSON](http://php.net/json), [mbstring](http://php.net/mbstring), [zlib](http://php.net/zlib), [Zip](http://php.net/zip)
-* MySQL 5.0.3+ (recommanded) or SQLite 3.7.4+
-* A recent browser like Firefox 4+, Chrome, Opera, Safari, Internet Explorer 9+
+	* Recommended extensions: [JSON](http://php.net/json), [mbstring](http://php.net/mbstring), [zlib](http://php.net/zlib), [Zip](http://php.net/zip)
+* MySQL 5.0.3+ (recommended) or SQLite 3.7.4+
+* A recent browser like Firefox, Chrome, Opera, Safari. [Internet Explorer currently not supported, but support will come back](https://github.com/FreshRSS/FreshRSS/issues/772).
 	* Works on mobile
 
 ![FreshRSS screenshot](http://marienfressinaud.fr/data/images/freshrss/freshrss_default-design.png)
@@ -45,7 +43,7 @@ The best way is to open issues on GitHub
 2. Dump the application on your server (expose only the `./p/` folder)
 3. Add write access on `./data/` folder to the webserver user
 4. Access FreshRSS with your browser and follow the installation process
-5. Every thing should be working :) If you encounter any problem, feel free to contact me.
+5. Everything should be working :) If you encounter any problem, feel free to contact me.
 6. Advanced configuration settings can be seen in [config.php](./data/config.default.php).
 
 # Access control
@@ -59,18 +57,18 @@ It is needed for the multi-user mode to limit access to FreshRSS. You can:
 # Automatic feed update
 * You can add a Cron job to launch the update script.
 Check the Cron documentation related to your distribution ([Debian/Ubuntu](https://help.ubuntu.com/community/CronHowto), [Red Hat/Fedora](https://fedoraproject.org/wiki/Administration_Guide_Draft/Cron), [Slackware](http://docs.slackware.com/fr:slackbook:process_control?#cron), [Gentoo](https://wiki.gentoo.org/wiki/Cron), [Arch Linux](https://wiki.archlinux.org/index.php/Cron)…).
-It’s a good idea to use the web server user .
+It’s a good idea to use the Web server user.
 For example, if you want to run the script every hour:
 
 ```
-7 * * * * php /chemin/vers/FreshRSS/app/actualize_script.php > /tmp/FreshRSS.log 2>&1
+7 * * * * php /your-path/FreshRSS/app/actualize_script.php > /tmp/FreshRSS.log 2>&1
 ```
 
 # Advices
 * For a better security, expose only the `./p/` folder on the web.
 	* Be aware that the `./data/` folder contains all personal data, so it is a bad idea to expose it.
 * The `./constants.php` file defines access to application folder. If you want to customize your installation, every thing happens here.
-* If you encounter any problem, logs are accessibles from the interface or manually in `./data/log/*.log` files.
+* If you encounter any problem, logs are accessible from the interface or manually in `./data/log/*.log` files.
 
 # Backup
 * You need to keep `./data/config.php`, `./data/*_user.php` and `./data/persona/` files