"Show current branch only" fixed

Fix issue #1590

Conflicts:
	GitUI/RevisionGrid.cs
Revert "Auto pop stash after checkout branch"

This reverts commit 35617914e1ee72b9bde9a357a1000a844b635790.
Update french translation...
Merge pull request #1650 from pmiossec/french

Update french translation...
ShellExtensionSettingsPage: add simple preview for context menu items
Escape the backslash

This is the correct Markdown syntax
FormCheckoutBranch behavior fixed again when called from commit dialog
Merge pull request #1670 from linquize/release/2.44

Escape the backslash
Navigation in the blame committer list when double clicking

(like in the blame file area on the right...)
and fix a bug where the contains of the blame committer list disappeared
Merge pull request #1649 from pmiossec/correct_blame_doubleclick

Navigation in the blame committer list when double clicking
"Set version" Python script added
FIx bad path for RestSharp in the installer config
Merge pull request #1695 from DanRigby/FixRestSharpSetupPath

Fix bad path for RestSharp in the installer config
Fixed typo Upgrage to Upgrade for translation in ChecklistSettingsPage.cs
Updated German translation for release 2.44
Merge pull request #1697 from Copro/master

Fixed typo Upgrage to Upgrade for translation in ChecklistSettingsPage.cs
Make LockableNotifier threadsafe
tabs now converted to whitespaces
Merge pull request #1700 from fraga/fixMonoSpacesBlock

tabs now converted to whitespaces
adding instructions on how to install nuget for monoDevelop