added change UserName, UserEmail and deletebranch
now it's possible delete local branches from the branches selector, it's also possible change username and user email of the current repository.
fixed style, improved features, fixed code
- now branches menu uses the same "trash-icon" used by brackets
- added error handlers
- added "default value" feature to `askQuestion()` so it's possible to have the current user.name and user.email in the modal popup field.
replaced `attr()` with `data()`
added feature to create/remove remotes
removed TODO comment
added "undo last local commit" button
fixed problem when deleting current remote
Moved "close not modified" button
Merge pull request #244 from FezVrasta/master

added change UserName, UserEmail and deletebranch