Added SetWindowPosition() / GetWindowPosition() to Graphics.
Added GetDesktopResolution() to Graphics.
Resized the Urho3D logos to power of two dimensions, as otherwise they don't work right on iOS.
Store an explicit parent ListView pointer to HierarchyContainer to avoid having to search for it through the element hierarchy.
Return window size for GetDesktopResolution() on mobile platforms due to possible SDL bug.
Add the concept of base class type to Object to simplify determining if a ScriptInstance's handle variable is a Node, Component or Resource. Serialize script's resource handles as ResourceRef attributes and allow editing them.
Trim path in AddTrailingSlash() & RemoveTrailingSlash() to be sure. Fix extra slashes appearing in scene load path in the editor.
Fix crash when loading another scene in the editor after loading a scene with physics constraints.
add key_esc to kill quickmenu
Reorder GetType() & GetBaseType() functions in headers for consistency.
Added execute bit for cmake_clean.sh.
Updated documentation on build option being cached.
Corrected usage of message() command for showing CMake status.
Generated sources are defined before normal sources.

To be consistent with the rest of the CMakeLists.txt.
Support more source file extensions.

Added support for: .mm (Objective-C++ source code) and .s (preprocessed assembly source code).
Merge remote-tracking branch 'remotes/friesencr/escape_quickmenu'
Renamed IOS and Mac OS X framework macros.

These macros may be used later not just to setup frameworks but also
other linker flags.

Renamed setup_ios_frameworks    -> setup_ios_linker_flags.
Renamed setup_macosx_frameworks -> setup_macosx_linker_flags.
Recreate "assets" directory back in Git repository.

Git does not handle empty directory like SVN. A directory in Git must at least contain a file to be tracked.
Added .gitignore to do the work and at the same time tell Git to ignore all the symlinks/files in this directory.
Merge local branch.
Set internal flag on ListView containers before adding as a child. Fixes #10.