Add .gitignore file, some Bugzilla related classes and methods.
updated logic of processor and added dep to pull-share
added a check if the commit was changed after it had been reviewed
reverting back to Chao's bugzilla interface
don't post any github comments if dry-run
adding a check for finished PRs
fixing the Hudson URL
adapt it to the renamed conf/method names of pull-shared
adding some comments
it will complain about PRs which don't follow the rules from now