"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...
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
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
Improving German translation and introducing correct line breaks for label1.Text in FormGitReview
Fixed link to the git-review command page which fixes #1704
Fixing typo Ammend -> Amend in chkAmmend.Text chkAmmend and Settings.DontConfirmAmmend should also be fixed
Merge pull request #1706 from Copro/TranslationAmend

Fixing typo Ammend -> Amend in chkAmmend.Text