rename frm-to-schema to frmdump
rename table conversions commands to decode and encode respectively

- encode -> encodes a tablename to a mysql filename
- decode -> decodes a filename to a mysql tablename
rename mysql-sandbox -> sandbox
add short options for dbsake --debug, --quiet top-level options

- -d, --debug to enable debug output
- -q, --quiet to enable quiet output
remove stale debug output from frm api

- old code from debugging blob default value issues, where the
  NO_DEFAULT flag was not set.  This has since been fixed and
  this statement was useless.
cleanup example to use py3 compatible syntax
cleanup setup.py

- load requires, test_requires from local *requirements.txt files
- load description from README/HISTORY more cleanly
add *requirements.txt files to MANIFEST.in

- this is necessary as setup.py depends on these files
fix MAP_FAILED constant in fs api

- this was broken on pypy when trying to cast a negative
  integer to a void pointer via struct.  Now the ctypes
  API is used, which seems to address this point.
fix bytes / str braindamage in setup.py -> load_requirements

- load_requirements now uses codecs to read files in utf-8 mode
  to satisify python3 requirements for setup.py args.