Added helper to open file with emacsclient using filename:line path

Most of console-based utilities prints filename in format
"filename:linenumber". So you may wish to open filename in that format.
This little 'advice' can do that. Just call

emacsclient filename:linenumber

and cursor will be positioned on requested line
Personal setup
default theme = solarized-dark; global-hl-line-mode; rollback C-k behavior on smartparens mode
ido + recentf: C-x C-r