Version 1.2 - using inline asm

Allocate bitsets in aligned quadwords
Use assembler bit-level operations for speed
Test issues with normalize() and to_byte()
Streamlining

Changed bytes() method to bytesize() to match String
Split test tasks into 'test:unit' and 'test:spec'
Clarified encoding issues on bytes() method
Failing on minus test!
Version 1.3

Test and documentation improvements
Added notes on operand size in README
Add more spec tests for operators