CVS: Pass const string by reference

Change-Id: Ieee43c000c29a0d25984fcab1d8d5ca897d00907
Reviewed-by: Tobias Hunger <tobias.hunger@digia.com>
Git: Remove redundant null validations

Change-Id: I6977b7c7633191d768c39d0bfff43c8aedecae9d
Reviewed-by: Tobias Hunger <tobias.hunger@digia.com>
Qnx: Pass some values by reference

Change-Id: I6190cfa0b031a832222d89e3a37970a4440dbadb
Reviewed-by: Mehdi Fekari <mfekari@blackberry.com>
Reviewed-by: Tobias Hunger <tobias.hunger@digia.com>
VcsBase: fix constness of VcsBaseClient member functions

Member functions VcsBaseClient::createCommand() and vcsSynchronousExec()
should be const (ie. read-only functions)

Change-Id: I4db75c9e23d9d1abf316ce1a4e222a5f3b339b13
Reviewed-by: Tobias Hunger <tobias.hunger@digia.com>
Tests: Fix compilation on Win

Change-Id: I19e418fb05462e80b97f4d821cfa72b0b880ea5b
Reviewed-by: Nikolai Kosjar <nikolai.kosjar@digia.com>
Git: Suppress command logging for tooltip display in branches dialog

Change-Id: I933a68c566a9acd40913ccc78363645572aa8ff8
Reviewed-by: Tobias Hunger <tobias.hunger@digia.com>
Git: Fix handling of Enter key on LogChangeDialog

Broken in 7e59415f

Change-Id: Ibbcd784965d101207ef873b1ba4d6d45e865c8b9
Reviewed-by: Tobias Hunger <tobias.hunger@digia.com>
Add CurrentProject:VcsTopLevelPath as a variable.

Change-Id: I46ed1c0711cc9cc23f82628e8e9dcd82b1112fad
Reviewed-by: Orgad Shaneh <orgads@gmail.com>
Reviewed-by: Tobias Hunger <tobias.hunger@digia.com>