Updated the README for release 1.4
Improve dev-launcher build:

1. Automatically generate org.apache.felix.fileinstall-*.cfg files, which means less maintenance
2. Watch local Maven repository instead of **/target folders, which means less configuration
Minor reorganization of the fileinstall config file generation

- moved the XSLT outside of the 'resources' directory
- updated the assembly files accordingly
- added a version to the maven-help-plugin
- use the 'target' configuration instead of the deprecated 'tasks' for the antrun plugin
Merge pull request #13 from daisy-consortium/dev-launcher

dev-launcher