Allow searching from the commandline

Using zeal --query 'my query'. Will pass to currently open app
Remove debug
Fix errors with invalid arguments
Allow opening with query
Use window hack for showing search
Change docset delimiter to Dash convention
Merge pull request #25 from christoffer/tweaks-to-search-edit

Tweaks to search edit
Merge branch 'plugin' of https://github.com/christoffer/zeal into christoffer-plugin

Conflicts:
	zeal/mainwindow.cpp
Fixed queries without docset prefix
Merge remote-tracking branch 'parent-repo/master'

* parent-repo/master:
  Fixed queries without docset prefix
  Change docset delimiter to Dash convention
  Use window hack for showing search
  Allow opening with query
  Fix errors with invalid arguments
  Remove debug
  Allow searching from the commandline