Mm277

-Modified highcharts source to allow for much larger timeline views. I submitted this change to the highcharts git as a bug, so hopefully they will incorporate it.
-Changed the "non-date" timeline mode to switch over when a date is given in LT format that does not fit in a js date object.

Note that I got rid of the compiled version of highcharts in order to make changes. This is ok as we compile assets for production anyways.

#277 #276