#2 add callback for each iteration of a loop
#4 #6 make tickInterval a setter/getter in loop interface
Merge branch 'iss4iss6' into release-0.2

Conflicts:
	blip.min.js
#7 Allow setting a clip's default rate and gain
0.2.0
add semver as blip.version
Merge pull request #8 from jshanley/release-0.2

release version 0.2.0