[GCI] Fix some Clazy warnings

Review Request #126390 - Created Dec. 16, 2015 and submitted

Information
Imran Tatriev
bluedevil
master
Reviewers
bluedevil

I've fixed some warnings, here they are:

  • Passing non-trivial const types by value instead of const reference
  • Unneeded heap allocation with QString
  • Places, where QString::fooRef() should be used instead of QString::foo()

  
David Rosca
Imran Tatriev
Review request changed

Status: Closed (submitted)

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