[3.0.0-beta.17] Memory improvements and updated bach-js to v3.0.0-bet…

…a.11

Fixed potential syncronization bug in Gig.resume with audible tracks …

…that need to be reloaded into memory (introduces a time delay between Gig and audio clocks).

Fixes to Gig.play, Gig.travel and improvements to guard against memor…

…y leaks

Seek and travel (beta)

3.0.0-beta.13

3.0.0-beta.12

3.0.0-beta.11

3.0.0-beta.10

3.0.0-beta.9

3.0.0-beta.8