GotoUserManualControl: fix AutoScaleMode
add first version of RemotesComboboxControl
GitModule.GetCurrentRemote(): remove if statement because it can cause the return of a non-existing remote
FormDeleteTag: use RemotesComboboxControl instead of simple label
FormDeleteTag: respect choice made in the Remotes combo box
Add help link
pointing to latest checkout on GitExtensionsTest
Merge pull request #1771 from fraga/updateGitExtensionsTest

pointing to latest checkout on GitExtensionsTest
Merge pull request #1752 from feinstaub/topic_remotes_combo

Add a RemotesCombobox user control and use it in FormDeleteTag