Added map F to ShowAllFuncNames(): List all function names of current file.
Avoid warning in Zenroom on newer Vim release.
Linus Torvalds style:

	Tabs are 8 characters, and thus indentations are also 8 characters.
	There are heretic movements that try to make indentations 4 (or even
	2!) characters deep, and that is akin to trying to define the value of
	PI to be 3.
Added tw for Markdown and gitcommit.