Merge tag '1.1.5' into develop

v1.1.5
- experimental Composer support
Fix: Travis CI needs composer to install dev dependencies
New: use Phix autoloader to help execute unit test code
Fix: do not version composer package names
Sod that, DO version composer package names
Fix: use autoloader4, not autoloader
New: ignore composer files
Fix: use Phix autoloader to load test code
Fix: give up on versioned package names; stop breaking PHPUnit
Version bump
Merge branch 'release/1.1.6'