bioawk: Fix build error, and install README.md
ViennaRNA 2.1.3

Closes #329
bali-phy: Depends on pkg-config and cairo

Fails with clang 425
bali-phy: Update homepage and url

The (same) bali-phy files and web pages are now hosted at
www.bali-phy.org. Update bali-phy.rb to reflect this.

Closes #330
snpeff 3.3H

Closes #325
Closes #326