add MIT license metadata to gemspec
use HTTPS for URL in gemspec
Merge pull request #104 from ktdreyer/gemspec-url

use HTTPS for URL in gemspec
Merge pull request #103 from ktdreyer/gemspec-license

add MIT license metadata to gemspec
Updates pygments
TOML is a custom lexer
Merge pull request #127 from alindeman/pygments-latest

Updates pygments
Cache lexers
Bump to 0.6.0