Merge pull request #56 from interlegis/master

Add bootstrap3 support
Merge pull request #58 from interlegis/master

Fixing TypeError when creating gist
The expiration choice ‚never‘ is now enabled by default.
Added a API value to set the expire time of snippets. Closes issue #64.
Add support to tzinfo
Added settings docs for Gist changes made in issue #58.
No „View Raw“ button when viewing a one-time snippet, since it was already deleted at this time. Closes issue #62.
Removed Recent Changes.
Changelog update and 2.6 Release
Split testcases so we dont rely on a DB order.
Add support to set a lexer with a given filename. Closes issue #63.

This allows third-party API utils to set the lexer automatically based on the open filename.
Added Dev Changelog
Added a note that you have to disable ‚lexer‘ to use ‚filename‘. 

Might be good to rethink the logic here.
Fixed XSS bug, 'code' lexer syntax were not escaped properly.
Merge branch 'master' of github.com:bartTC/dpaste
Added unittests for the xss bug.
Updated Django versions used for testing.
Updated changelog.
Prepared for next release.
Fixed misleading doc typo