bug 1224356 - Let user know commit has started
bug 1224356 - Let user know commit has started

Change the Commit button and label so that the user knows the commit has
started, instead of wondering if they hit the button or if the system is
frozen.

jwhitlock/web-platform-compat,jwhitlock/web-platform-compat,mdn/browsercompat,jwhitlock/web-platform-compat,mdn/browsercompat,mdn/browsercompat