Typo in preference name broke key mapping in VNC

The keyboard mapping preference is stored under the name "keymap", but
looked up by "gkeymap", which was always null. The "Map Meta"
preference now works perfectly for me to connect to OS X.
Fix for issue #251
Multiple compile-time changes against the Remmina 2012-09-22 snapshot to make it compile with FreeRDP 1.1.0_beta1_p20130710
Replaced missed xzalloc with calloc
cmake: add WITH_TRANSLATIONS to disable generation .po files (Fixes: #23)

(cherry picked from commit c24ad6692ed127b5b6f06339ef2f419ce1da99ca)
Remove duplicate Actions key in desktop file.

(cherry picked from commit 73eb1ef26bcaf6f407670657eafd280c9cdb9dd4)
Fixed Gentoo QA Notice in desktop file

 * QA Notice: This package installs one or more .desktop files that do not
 * pass validation.
 *
 *      /usr/share/applications/remmina.desktop: warning: key "OnlyShowIn" in group "Desktop Action Profile" is deprecated
 *      /usr/share/applications/remmina.desktop: warning: key "OnlyShowIn" in group "Desktop Action Tray" is deprecated
 *
Recompressed icons. Also removed executable bit to some icons.
freerdp-channels was remed to freerdp-client
Cherry-picked commits 05970e83e47f50fa6605b967f69d798d410e8afd and 728ec0b86cfc2b251c294f7b4dc0e5399df6f7ac from upstream

* plugin-rdp: convert to new unicode convertion api
* plugin-rdp: minor fixes
plugins-rdp: fix crash when free'ing cursor

(cherry picked from commit 74db2bbb342f3f2718e67a0a329e0c20672daed6)

Conflicts:
	remmina-plugins/rdp/rdp_event.c
	remmina-plugins/rdp/rdp_graphics.c
Fixes #120: Fix linking of avahi

(cherry picked from commit 108b8cf5f0697b6704d9cd8a34489e1f913c2a1f)
cmake: small change in FindAVAHI

(cherry picked from commit 862e383036383cd0cdff3552f81f52a0b9844b75)
cmake: add WITH_TRANSLATIONS to disable generation .po files (Fixes: #23)

(cherry picked from commit c24ad6692ed127b5b6f06339ef2f419ce1da99ca)
Fixes #113: call add_subdirectory after ALL add_definitions

(cherry picked from commit 35cb7961084433f223e7d3b03ef8f52b36a1a690)
Detect GTK before other packages

(cherry picked from commit e354cd2038d350ca11ec2ea84e7ac7a4b558ccd8)
Updated README with GTK2 on uclibc instructions
Fix issue with invisible toolbar in fullscreen.
Merge commit 'b6a55ae6f4633d55f8f03e7ce2eeb5899514a8fc'
Corrected compile warnings