Document reposetup; recommend loading on per-repo basis

Implement configurable exclusion of files from expansion

Only initialize kwtemplater in kwfilelog if needed

Use full power of util.matcher for kwfmatches()

Simply dict() keywordmaps configitems

Emergency brake against multiline expansion As expansion always happens ad hoc, is not tracked, multiline or incremental expansion do not seem worth the trouble. If at all, it would make sense with static, hardcoded keywords.

More doc, link to KeywordPlan

No need to read changelog in show(); node mandatory arg for expand()

Just re-bin the node kwarg of the hook, instead of using changelog

Same as for hardcoded branch: omit hooktype test, return w/o explicit value

Omit hook test; return w/o explicit value (==False)

No clumsy setting of node in kwfilelog.add, pass as kwarg

Expansion entirely in kwfilectx.expand()

Implement custom keyword map templates in hgrc More expensive than hardcoded keywords. But, of course, more flexible. ATM templates can only be set in hgrc, and perhaps this is enough.