win32: Don't allow installing on Vista

It does not run on Vista
win32: Update Python links
Fix possible crash in spell check

Closes #1048
Fix apostrophe related spell check issues
Add GeeksIRC and IRC4Fun to network list

Closes #1057
Closes #1058
Fix various crashes with pluginpref
Fixed expand_homedir to handle paths like "~user" correctly.
Bump updater version on Windows
Fix warning
Stupid github editor adding newlines
osx: Create bundles using homebrew

Just easier to maintain than jhbuild.

See https://github.com/TingPing/homebrew-gnome for deps.
Bump master to development release 2.11.0

To anybody confused this is not the next stable release, it is just a way to differentiate master
from the 2.10 branch and next stable will be 2.12.0 similar to Gnome's versioning scheme.
Update readme.md
Update badges in readme
Use GFile API in gtkutil_check_file instead of stat/access.

The latter functions expect codepage-encoded filenames on Windows but GLib's API returns filesystem-encoded paths, which on Windows are UTF-8. GLib API should be used to deal with GLib API results.

Also fixed leaks in two of the callers of gtkutil_check_file()

Fixes #968
Use glib to get portable mode dir

This should fix any non-ascii paths
Fix using negative index
xtext: Add word and line selection modes

Similar to a GtkTextView if you double click you enter word selection mode
and if you triple click you enter line selection mode.
Allowing you to drag and select more than a single character.

Closes #1108
Fix DOMAIN and EMAIL patterns.

Closes #1107
Escape values set via pluginpref

Fixes #790