Migrate auto-update to git about w3af HOT 3 CLOSED

Asked a question at the GitPython mailing list about merge conflicts. Check tomorrow for an answer
https://groups.google.com/forum/?fromgroups#!forum/git-python

from w3af.

All working but the following:

• update() is slow and makes the GUI unresponsive

• changelog doesn't show on the summary window

• need to be able to pull() to a specific revision: only available with the console WONTFIX.

• need unittesting for fetch and pull, create a new (local) repo for testing? WONTFIX: was useful only if I wanted to support moving to a specific commit, but I won't re-test that PythonGit's fetch() and pull() work as expected since I'm calling them without any strange parameters and they already have unittests for their core.

• need to detect merge conflicts (see answer on mailing list) and reset() to a previous revision

  Pending work for the next milestone: #98

from w3af.

Tested reset()
Tested repo_has_conflicts() using [0]

[0] https://raw.github.com/phluks/create-git-conflict.sh/master/create-git-conflict.sh

from w3af.