Make inclusion of CSS files configurable
make CSS generation optional
add vim modeline
Keep first backup of this day

it holds the version of the blog which was here "today in the morning".

this is useful for those who, like me, first do "bb.sh rebuild" few times
before realizing "oh damn I screwed up everything".

Note: you are not expected to screw up on midnight.
Make filename generation routine play nice with Russian and Unix
cut on tag pages, too
Preserve line indentation in HTML file while rebuilding it
Merge pull request #35 from Lex-2008/small-fixes/1

Small fixes/1