Faster reload. Need to test the difference with a Fully Loaded Environment
Add support for cache headers and an in-IRIS cache
Add test case
Improve tests and logging
Merge pull request #156 from andrewmcguinness/cache

Cache implementation
Since EDS cartridge from IRIS are now updating the timestamp of a file called lastChange in the root of the -modlels-gen project, introspect this file only to know it something changed. The next step (once we will have merged the PRD files into 1 / resource would be to put the file names changed in this lastChange file.
Merge pull request #160 from temenostech/FasterReload

Faster reload
Merge branch 'master' of https://github.com/temenostech/IRIS