Make toolchain for building ffmpeg customizable
Made the changelog Markdown
Update README.md
Remove the html doc files (!)
Bump version to 2.20
Merge pull request #158 from nixxquality/markdown_doc

More Markdown things
Merge branch 'master' into cplugin_master

Conflicts:
	Makefile.am
	Makefile.in
	aclocal.m4
	configure
	configure.ac
	ltmain.sh
	missing