Fix: Copy tre-config.h from include/tre for Windows compile.
     Copy setup.py from setup.py.in for Windows.
     Change setup.py[.in] to place tre.dll in the Python site-packages directory.
Add the following additional routines from the R tre modifications:

tre_regnexecb
tre_regexecb
tre_regncompb
tre_regaexecb
tre_regcompb

These work on raw byte vectors.
Add the following additional routines from the R tre modifications:

tre_regnexecb
tre_regexecb
tre_regncompb
tre_regaexecb
tre_regcompb

These work on raw byte vectors.

Add REG_USEBYTES define used by the above.
Make use of REG_USEBYTES.
Merge pull request #14 from opoplawski/R

R additions
Merge pull request #12 from bjones1/win_python_fix

Fix Windows compilation errors