dependency version updates
Merge branch 'develop' of github.com:timmolter/XChange into develop
Add unit tests and volume to ticker for LakeBTC.
Merge remote-tracking branch 'upstream/develop' into develop
bump version to 2.1.0-SNAPSHOT
Merge remote-tracking branch 'upstream/develop' into develop
Complete cryptsy public api implementation.  Also, add LakeBTC unit
tests and add volume to ticker.