Added detection for the Pike language:

http://pike.ida.liu.se/
Reverted pike tests until such time as we have a pike lexer here.
Add TXL language

Add:
 * TXL language
 * Sample TXL file
Rename sample file's extension to match languages.yml
Merge pull request #400 from kevinjalbert/add-txl

Add TXL language
Merge pull request #170 from johan/detect-pike-language

Added detection for the Pike language.
Alphabetize Pike
Remove extra extension list
Bump to pygments.rb 0.4.0
Begin 2.6.0 series
Bump pygments
Merge pull request #404 from github/new-pygments

Bump to latest pygments.rb
Bump version, add toml
Just name
Merge pull request #405 from github/new-pygments

New pygments