Initial pastie.org support
handle true/false for 'private' setting
update README summary
remove SYNTAXES as not used
Merge pull request #9 from akrabat/pastiesupport

Pastie.org support from @akrabat
Remove unused import.
Tell pastie which syntax to use.

Didn't include every syntax. Pretty much stole the list from dpaste's
implementation.
Merge pull request #11 from fzeoli/master

Improve pastie.org support. Thanks to @fzeoli
Default to public if 'private' is not in config (pastie.org only)