updated system requirements

Conflicts:
	admin_manual/installation/linux_installation.rst
	admin_manual/installation/system_requirements.rst

admin_manual/installation/linux_installation.rst

@@ -5,9 +5,8 @@ Preferred Linux Installation Method
 Installation Quick Start
 ------------------------
 
-See the :doc:`../release_notes` for the recommended ownCloud setup and 
-supported 
-platforms.
+See the :doc:`system_requirements` for the recommended ownCloud setup and 
+supported platforms.
 
 Installing ownCloud Server (the free community edition) on Linux from the 
 `openSUSE Build Service`_ packages is the preferred method. These are 

admin_manual/installation/system_requirements.rst

@@ -20,15 +20,17 @@ Supported Platforms
 -------------------
 
 * Server: Linux (Debian 7, SUSE Linux Enterprise Server 11 SP3 & 12, 
-  Red Hat Enterprise Linux/Centos 6.5 and 7, Ubuntu 12.04 LTS, 14.04 LTS, 
+  Red Hat Enterprise Linux/Centos 6.5 and 7 (7 is 64-bit only), Ubuntu 12.04 
+  LTS, 14.04 LTS, 
   14.10)
 * Webserver: Apache 2  
 * Databases: MySQL/MariaDB 5.x; Oracle 11g; PostgreSQL
 * PHP 5.4 + required
 * Hypervisors: Hyper-V, VMware ESX, Xen, KVM
 * Desktop: Windows XP SP3 (EoL Q2 2015), Windows 7+, Mac OS X 10.7+ (64-bit 
-  only), Linux (CentOS 6.5, 7, Ubuntu 12.04 LTS, 14.04 LTS, 14.10, Fedora 20, 
+  only), Linux (CentOS 6.5, 7 (7 is 64-bit only), Ubuntu 12.04 LTS, 14.04 LTS, 
+  14.10, Fedora 20, 
   21, openSUSE 12.3, 13)
 * Mobile apps: iOS 7+, Android 4+
 * Web browser: IE8+ (except Compatibility Mode), Firefox 14+, Chrome 18+, 
-  Safari 5+
+  Safari 5+