v0.2.0 - Color schemes for plots and 5' and 3' read counts

riboplot

• Support for color schemes - options: default, colorbrewer, rgb, greyorfs.
• Plot changes - colored, light background for ORF architecture, legend moved down.
• Image DPI change 300 -> 600.
• Sample scripts to plot multiple transcripts and multiple color schemes.

ribocount

• Ability to output read counts in 5'(-v) and 3'(-r) regions.

Bugfixes

1. Report error if a bam index could not be generated (ex. bam sorted using
   reference names instead of chromosome coordinates).
2. No start/stop values when transcript sequences are in lower case.

Tests

• Split into three different files.
• Updated test configuration.

Minor

• XML wrapper changes - remove 'leader', add help text and output label change [ribocount].
• Remove unused pysam import [riboplot].
• Replace doc includes with sym links (breaks Galaxy toolshed otherwise).
• Updated CSS/Table styles (removed number column from table).
• y limit is now 1.25x [riboplot].
• Removed line width on bars [riboplot].