[jade] rewriting options.html to jade
[jade] trying jade again, but different this time
[project] updated BUILDING.md
[jade] export fix
[jade] removed old jade experiment
[jade] rewrote background in jade
Merge branch 'develop' into dev-jade

Conflicts:
	src/background.html
[jade] rewrote options to jade
[jade] rewrote Makefile for jade support
[jade] layout tweaks for jade
[jade] split help file in multiple files
[help] added disclaimer to help, removed old help file
finishes the documentation rewrite, fixes #36
Merge branch 'dev-jade' into develop