Oudated topic, bit I need help again and don't want to start a new topic:
My branches were totally outdated, I believe I've fixed the master with:
git fetch upstream (upssream is the elkarte/elkarte account)
git checkout master
git reset --hard upstream/master
git push --force origin master (origin my forked ElkArte repo on github)
master seems to be synced with the elkarte repo 
Just wanted to do the same with the developement branch, but can't checkout to that branch.. constantly getting : The following untracked file would be overwritten by checkout:
sources/controllers/XMLPreview.controller.php
Any ideas how to fix that?
and by the way, which branch is the right one for working on 1.1 or working on 2.0?
master 1.1 and developement for 2.0?
Sorry, haven't worked with git for over a year, just feel like a beginner now 