Upgraded nginx ver. Few changes for easy dev setup.

- Scripts for developer setup
- Upgraded nginx openresty to 1.7.0.1
- Docker image name read from config. For ease of development and upgrading.
fix shellinabox
Few UI tweaks

Also:
- Added fancyindex to ngnix
- Upgraded jquery and bootstrap versions
- Cache downloaded nginx sources in dev environment
Merge pull request #2 from tanmaykm/tanmaykm

Few fixes and enhancements