Introducing hierarchy of node properties

What's new:

• Hierarchy of node properties (read more below).
• Underlaying material for reflections.
• Console commands now can be created by means of UnigineScript.
• Variables content can be accessed via [] operator, there are new __set__ and __get__ class memebers to be overloaded for [] access.
• Adjustable precision of mesh data for 3dsMax export plugin (snap to grid).
• Friction and restitution parameters are moved into base properties library.
• Filesystem speedup.
• A file inside 'data' directory can be access very fast now, if its name doesn't contain 'data/' prefix.
• Fixed LWO format loader.
• New format of world files: material name should be in 'material' attribute of 'surface' tag (old format will be supported for some time still; re-save world to update its format).
• Removed 'deprecate.mat' material library, there is no more mesh_detail_base (use mesh_base instead of it).
• Great speedup of scripts compling (it is almost 4 times faster now).
• Fixed reflection masks.
• Cube filtering of ambient maps.
• Stereo launchers dynamically load DirectX libraries now.
• Removed FreeBSD building rules due to very low demand on FreeBSD support.
• Automatic generation of focus cycling order for UI.
• reflection_adjust parameter for cube reflection for fine tuning.
• Almost all memory leaks are eliminated, there are only 3 unfreed pointers left.
• Added time.h (for correct sun position according to a given time) to the core scripts set.
• Added sun movement into 'water' demo.
• WorldTrigger can work with predefined set of nodes (if the list is empty, all nodes are taken into account).
• Correct work of tabbing in WidgetEditText.
• Simple syntax highlight in built-in text editor.
• New ALIGN_BACKGROUND flag for separating widgets by rendering order (work only for WidgetVBox).
• WidgetManipulator takes care about step of snap.
• New icons in UnigineEditor.
• Fixed annoying 'invalid operation' error in OpenGL.
• Snap to grid for moving and rotating objects (set grid step in 'Tools' window).

Node properties is a general purpose mechanism for adding some custom properties to objects (like game-specific parameters and so on), they can be set per-surface. Properties set can be flexibly adjusted for a project, see data/core/properties/unigine.prop as an example, the system is very similar to our visual materials. Use 'o' hotkey to access properties window in UnigineEditor.

Some notes regarding changes in development environment:

• Unigine_Externs pack is updated, all 3rd-party code is moved there
• All .lib files provided with Unigine_Externs are for Visual Studio 2008, older ones can be found in 'vs2005' subfolders
• Recommended SCons version is 0.97