Fix build w/o core library

Change-Id: Icf9bf90a6bcee3cd0dd28e27f19a75d53438e429
Merge pull request #54 from tribal-tec/master

Fix build w/o core library
Build fix for displaycluster application

Change-Id: If65e3f4c5b7d15bb31188b7c4130b139ecd3a13e
Merge branch 'master' of github.com:BlueBrain/DisplayCluster
Merge pull request #55 from tribal-tec/master

Build fix for displaycluster application
Added new configuration parameter

This parameter is now passed to the WebbroserCommandHander as the default URL to be used in case the command received does not provide a URL.
Taking code review into account
Merge pull request #56 from julitopower/webbrowsermerge

Added new DockDefaultURL configuration parameter
Substitute QDateTime by boost::date_time::posix_time::ptime
Taking code review comments into account
Merge pull request #58 from julitopower/qdatetimesubstitution

Fix DISCL-177 - compilation with Qt4.6: Substitute QDateTime by boost::posix_time::ptime.
Webkit: javascript alternative to <select> form elements.

Change-Id: I2d1b31bb54d2b6f9f57c7603f39ba0cca7dcd328
Code review, refactoring of the WebkitPixelStreamer and associted tests.

Change-Id: I6973bb337039e27a6172ee05fa83fcab333643e9