docs fix
application can serve static files now
docs fix
Merge remote-tracking branch 'upstream/master' into devel

Conflicts:
	lib/PEF/Front/Intro.md
Added creating cache file in cache.t
Added get_progress call in upload_progress.t
Added checks for creating rpc object
Changed t/rpc.t
Added pod to RPC
Changed rpc.t
route function can return stringified flags
Merge remote-tracking branch 'upstream/master' into devel
Changed t/nls.t, added some pod to NLS
refactoring prepare_deafults
small cleanup
fixed absent guess_lang
rename TemplateHtml -> TemplateTT
fix&cleanup
cache expire time refactoring
new functionality: preload all modules in memory