v0.32

Bug Fixes:

• COPYING file was APACHE license by mistake.
• Remove trailing whitespace at end of lines in command line mode
• Fix warnings in build for 32bits.
• Fix compilation and runtime for Mac.

Enhancements:

• handle trailing argv as single expression:
  This allows running bitwise like this:
  bitwise 0x30 + 0x50
  instead of:
  bitwise "0x30 + 0x50"