year
update jruby and deps (minor updates)

jruby 1.7.11 -> 1.7.12
rake 10.1.1 -> 10.3.1
cuba 3.1.0 -> 3.1.1
tilt 2.0.0 -> 2.0.1
warbler 1.4.1 -> 1.4.2
edit top links in README (for github)
fix windows build versioning
refactor app startup so that systems with no desktop environment still start tabula properly. fixes #171 #147 #148 etc
first pass at 0.9.4 (see #174)
back out part of changes to app startup since that gets the wrong port number under "rackup"