syntastic 3.5.0

Core changes

• New option g:syntastic_sort_aggregated_errors (@lcd047)
• New syntax highlight groups SyntasticStyleError and SyntasticStyleWarning (@kovidgoyal)
• Lazy calls to the IsAvailable() functions (@lcd047)
• New option g:syntastic_cursor_columns (@lcd047)
• Various bugs have been fixed.

Syntax checker changes

• Added lint checker for R (@lcd047)
• Added svtools checker for R (@lcd047)
• Added scan checker for Haskell (@lcd047)
• Added plutil checker for OS X and iOS plists (@lcd047)
• Added tslint checker for TypeScript (@swook)
• Added recess checker for LESS and CSS (@pixelastic)
• Added bro checker for Bro (@JustinAzoff)
• Added cabal checker for Haskell Cabal files (@ianbollinger)
• Added sassc checker for SASS and SCSS (@lcd047)
• Removed the rustc checker for Rust, now part of the [Rust compiler package]3
• Added avrgcc checker for Arduino's ino and pde files (@lcd047)
• Disabled the elixir checker by default, for [security reasons]4
• Added clang_check and clang_tidy checkers for C and C++ (@bbannier)
• Added phplint checker for PHP (@lcd047)
• A number of checker variables have been marked as deprecated (@lcd047)
• Various bugs have been fixed.