added some unit tests for formatter
some initial work on multi level time axes
added actual .ts files and quicktest
fixed a few typos
working version
rearranged a bit
added a few more intervals
removed _interval from multiTimeAxis
more quicktest work
added no-data no-renderer tests
added tests
added basic_moveToFront
added formatter per level
formatter.js
I've sure i've changed something since my last commit
2-level labelings
Merged in master
fixed errors from merging in master
Merge branch 'master' into multi-time-axis
made enough space for major axis