* Drag'n'drop translation in Outliner
* "Execute" button in file window
* "Labels" of spacing elements, in multi-column enums
* A glitch with nodes "Value to RGB", they where called "ColorRamp" in node_type_base() call. This is not definitive, though, as it appears that UI node names are determined by this call, while it should be by "defines" in rna_nodetrre_types.h, I guess... Anyway, not good to have such things in two different places!
Also moved default context name under BLF_translation.h, much better to have those all in one place, accessible from whole Blender code!
* Added RNA list viewer. This is currently drawn in the outliner
window, the UI is limited but it is just intended to test RNA
at the moment.
* Added UI names for currently wrapped properties.
* Made iterating collections a bit more convenient.