Fix web test but keep it disabled for now. Fix the descriptions in .travis.yml.
Switch to using the short array syntax.
added 'setting up the environment' section and added some stuff to 'contributing' in README.md file.

moved 'contributing' section to the top of the readme
Merge pull request #26 from fubhy/use-short-array-syntax

Switch to using the short array syntax.
Merge pull request #25 from omissis/readme-2276369

Added setup environment section to README and improved contributing guidelines.
Merge pull request #23 from fubhy/enable-webtest-support

Preparing web test support in the Travis CI file.
Added action expression.