ensured curl is installed
Fix #309 - ensured curl is installed
Merge branch 'develop' of github.com:fideloper/Vaprobash into develop
hvmm for trusty over precise
Added NGXCB and make use of it within nginx.sh

NGXCB (Nginx Create Block) makes it easy to quickly create and optionally enable it right away. Type in `sudo ngxcb -h` for more info.
Added ngxcb to helpers

- Added ngxcb to helpers
- Removed nghost
- Renamed the helpers including adding '.sh' extension
Some cleaning up for ngxen, ngxdis and ngxcb