Added a script rebasing all actives branches

- Added a script rebasing and pushing every active branch, be sure to delete
   (git branch -D <branch>) any useless branch before using it!

other_things/scripts/rebase_active_branches.sh

@@ -0,0 +1,15 @@
+# Rebase actives branches
+# Script by LeMagnesium (20/12/15)
+# @param : Branches to rebase from master
+# Must be ran from the root of the repo or a subdirectory
+
+for branch in $( git branch ); do
+	if [ branch != "master" ];
+	then
+		git checkout $branch
+		git rebase master
+		git push -f origin $branch
+	fi
+done
+
+git checkout master