strip comment up top, so that comments an be applied universally.  Without this, section headers cannot have comments, e.g. [section] # comment
add test of section comment
Merge branch 'allow-comments-on-sections' of github.com:mordyovits/config into mordyovits-allow-comments-on-sections

Conflicts:
	read.go
Merge branch 'mordyovits-allow-comments-on-sections'