touch after mkdir can create a dependency build loop when #include's are wrong; ditch it.  Also rename bitfield->BitVector; associated changes coming.
bitfield -> BitVector associated changes
Clean up leftover bogus casts
Add explicit 'this->' on base method calls (inside templates?) to avoid name resolution failures (on more modern g++'s?)
Merge pull request #11 from DaveAckley/master

Try to mop up failures from previous big reorg