Merge pull request #15 from trvrb/gh-pages

Aesthetic "improvements"
Moved all css divs by dy=-30px for better composition.
phyloSlider's drag was returning continuous-valued clock ticks (which are invalid array indices). Fixed using Math.round and some boundary conditions.
Deleted ~500 lines of unused code.
Added img for wiki.
Added DV and CV eg images.
Revamped input to use nhx instead of old phw format.
Added vireya example.
Fixed time setting for Vireya
Testing gh-pages by changing time
Restored 55Mya root date for vireya.nhx
Added minAreaVal setting to mask very low probability events.
Updated vireya example to use minareaval setting
typo fix
Wrote some ugly Ruby code and added beast-to-nhx-phylowood-discrete-location.rb.
Converted h5n1 to .nhx.
Updated vireya.nhx.
Added converter for AC BEAST files and added flu.nhx
Updated continuous phylogeography rb script and rabies.nhx
Added example 2
Fixed date of ex2
Removed ex2