0.4.1.7 Beta 01/02/2015

--User changes
 Use actual strips count when computing memory requirements in the final render dialog.
 Output CL_DEVICE_ADDRESS_BITS when passing --openclinfo to command line programs.
 Warn if single/total allocations are greater than the max allowed for OpenCL in the final render dialog.
 Make about box properly sized for different fonts.
 Dock widget is slightly resizable now.
 Center scroll area when loading a new ember.

--Bug Fixes
 Fix bad values left in an ember when a render with strips > 1 fails in the final render dialog.
 Fix incorrect calculation in dc_cube variation when using OpenCL.

--Code Changes
 Major work to get it running on Linux.
 Migrate from QGLWidget to QOpenGLWidget.
 Delayed init due to QOpenGLWidget.
 Break RendererBase::MemoryRequired() into two functions, it and HistMemRequired() and return a tuple.
 Add GlobalMemSize() and MaxAllocSize() functions in OpenCLWrapper.
 Change CHOOSE_XFORM_GRAIN to be 16384, so we can & with 16383 instead of using modulo when selecting an xform. This results in a 9% speed increase on the CPU.
 Save each newly loaded ember in a file called "last.flame" in the executable folder. This will help diagnose crashes that occur when switching embers.
 Use nullptr instead of NULL in the Fractorium project. It had previously been done in all other places.

Source/Fractorium/FractoriumXforms.cpp

@@ -45,7 +45,7 @@ void Fractorium::InitXformsUI()
 /// <summary>
 /// Get the current xform.
 /// </summary>
-/// <returns>The current xform as specified by the current xform combo box index. NULL if out of range (should never happen).</returns>
+/// <returns>The current xform as specified by the current xform combo box index. nullptr if out of range (should never happen).</returns>
 template <typename T>
 Xform<T>* FractoriumEmberController<T>::CurrentXform()
 {