Add check to see if latexmk is installed #142
Use latexmk's success_cmd/failure_cmd instead of checking return codes
Update docs to remove continuous preview error limitation
Added quickfix setting recommendation for continuous preview
Fixed minor error
Merge branch 'latexmk-successcmd' of git://github.com/LeszekSwirski/LaTeX-Box into LeszekSwirski-latexmk-successcmd
Fixed environment vars for Linux
Fixed async compilation (#146)

We need different call back strategies for continuous mode
and non continuous mode.
Minor fix (see #144)
Added syntax support for autoref
Syntax for additional cite commands