added -s option to support line-by-line formatting of stdin stream
removed pointless code and trimmed the -s help docs
Add a new envname option to the latex formatter.

It allows the user to pick a different environment name, for instance, BVerbatim
instead of the now-default Verbatim.
Add .rvt extension to TclLexer to support Apache Rivet Tcl code.

Ref: http://tcl.apache.org/rivet/
Merged in macnugget/add-rvt-extension-to-tcllexer-to-support-1402522378760 (pull request #1)

Add .rvt extension to TclLexer to support Apache Rivet Tcl code.
Add support for .ecl file extension for Prolog
Add <-> token to Coq lexer
Add missing Vernacular command 'Check' and tactic 'tauto'
Move space after inline html linenos to be inside of the span containing the linenos
Fix PHP heredocs and added nowdocs support.
basic lexer for Isabelle/HOL theorem prover
Add lexer for lean theorem prover
pygments.lexer: small PEP8 overhaul.
fix global instantiation of GosuLexer.
Add module to optimize regexes that consist of a long |-separated list of literals.
convert FortranLexer to use "words" function
convert C and C-like lexers to use "words" function
Nit lexer: untabify and apply words().
Swift: use sets for lookup
Mql: switch to words()