Nodeclipse build status
fix maven/tycho build (update to 0.19.0; make versioning consistent
using .qualifier)
add how-to build and release note
add manual and maven build instruction; revome .repository module
(inside .update site keep `site.xml` and `categories.xml` the same)
Merge pull request #31 from Nodeclipse/master

automatic build with maven/tycho 100% ready for CI