Generalizes cursor position in QuickOpen search queries
Updates cursorPos regular expression
Add line,col quickopen tests
Return null instead of just undefined
Merge remote-tracking branch 'origin' into jbalsas/quickopen_cols
Nits fixed
Merge pull request #5612 from adobe/jbalsas/quickopen_cols

Syntax for line:col jumps in QuickOpen search queries
Merge branch 'master' of https://github.com/adobe/brackets