Sync two branches in git

branch_sync

# Put in ~/.bash_profile
# Usage:
#   > sync master gh-pages
# Equivalent to:
#   > git push origin master
#   > git checkout gh-pages
#   > git rebase master
#   > git push origin gh-pages
#   > git checkout master

function sync {
	git push origin $1
	git checkout $2
	git rebase $1
	git push origin $2
	git checkout $1
}