removed most custom add_*data* wrappers from Main.c
removed makeCurrent() from Text.c (was never in a release), use "bpy.texts.active = text" now
clamp new image sizes
made add_empty_action accept a string rather then a blocktype since the blocktype was only being used to choose one of 3 strings anyway.
* Added bpy.*.new() - works for all except sound and font types
* Added bpy.*.load() - works for sound, font and image types
Text3d - removed unneeded check.
* Added data.lib attributes to almost all data types, (except for Text3d and NLA)
This is None or the path of the library as a string.
* Main was giving a warning, Include Curve.h rather then CurNurb.h
* Added Library.LinkedLibs(), returns a list of externaly linked libs.
