Relax regex to allow *.vimhook.arbitrary.stuff
Make functions local, expose commands

:FindHookFiles
    Find all hook files in the current working directory

:ExecuteHookFiles
    Manually execute hook files corresponding to whichever events are given
    as the arguments to this function. Will autocomplete event names.
    Example: :ExecuteHookFiles BufWritePost VimLeave. Currently only
    executes the global hook files.
:StopExecuteHooks and :StartExecuteHooks

These function will manually disable and re-enable the execution of hook
files, respectively.