* Added a function to define booleans negative, to turn negative
properties into positive ones gettin rid of the no_ prefix, and
also got rid of the use_ prefix for two booleans.
* Also made the function for enum bitflags separate, this is quite
rare so don't need to bother with this in most cases.
* Removed svn:executable flags from some files.
many small changes, but the two bigger ones are:
* Sensors and controllers now use inheritance, rather than pointing
to the data in a separate struct. Had to add some new RNA define
functionality to support this better.
* DNA_meta_types.h was marked as done but still missing many things,
now completed.
Implemented RNA wrapper for ModifierData.
Note that actual interface to access data of any specific modifier is
still missing. I also marked a couple of parts as TODO that should be
reviewed to decide whether or not to expose those specific parts
via RNA.
