Implemented autogroup

Changed version number

Now the version number is ok

Seems that there were a little bug when loading the file from some ot…

…her plugin

Changed the checking about the original branche while saving a file a…

…s a optional - and not default - option

Forgot again to change the version number. Need to deal with rebase t…

…o change the log messages when I do that. :-p

There were a bug when rebasing. On this situation HEAD just have a ha…

…sh and not the information about the branches the plugin looks for. Thanks for Joachim Bargsten for warning me about this.

I made a double check on the HEAD file. If there is not the information the script wants, a message about the condition is returned. If something also "explodes" there, there is a try/catch block.
If detect this rebase/merge/bisect situation, the file will be always saved without the branch verification.

Argh, another bug fixed. When trying to write to a file different fro…

…m the current

one, it was not saved. That happened because I was trying to save the file without
it's name, presuming if we tell to save to another file with :w the name was correct.It was fixed using expand("<afile>"). Btw, there was another bug when trying to save to an existing file and need to use the bang (!) with write. It was fixed checking if a bang command was used and executing the bang version if needed.

Changed the version number

Extra check on permissions of the Git directory