Merge branch 'bk/p4-pre-edit-changelist'

"git p4" learned four new hooks and also "--no-verify" option to bypass them (and the existing "p4-pre-submit" hook). * bk/p4-pre-edit-changelist: git-p4: add RCS keyword status message git-p4: add p4 submit hooks git-p4: restructure code in submit git-p4: add --no-verify option git-p4: add p4-pre-submit exit text git-p4: create new function run_git_hook git-p4: rewrite prompt to be Windows compatible