Integrate JBrowse & WebApollo with a few modifications into the source tree.

We won't be supporting legacy wiggle format and legacy bam-to-json.pl.

Included for testing, MAKER2 generated gene prediction in GFF3 format for two
scaffolds of fire ant genome.

FIXME

* Unable to zoom out

TODO

* Add Next button at the bottom.  Clicking Next moves to next genomic
* Fetch jqueryui using Bower.
* Make editing work
* Include a BAM file (and data in all formats supported by JB?) for
  testing.

Signed-off-by: Anurag Priyam <anurag08priyam@gmail.com>