Add link to README.md file about using ghost as 
a npm module

fixes #2008
Updated package.json to conform to npm standards

fixes #1053

- fleshed out script object 
- added test and install package.json
- updated contributing guide 
- updates travis.yml to leverage new npm start
Merge pull request #2160 from hswolff/package-json-updates

Updated package.json to conform to npm standards
Merge pull request #2161 from hswolff/npm-module-doc

Add link to README.md file about using ghost as a npm module
Adds support for additional permalink structures

fixes #2057

- uses express’ Route object to create RegExp’s
 that we use to check the incoming path
- refactored structure of fronted controller single
 tests to be easier to read
- amend regex to incorporate new allowed permalink
 structure
Merge pull request #2116 from hswolff/permalink-upgrade

Adds support for additional permalink structures