state for seminar 1: added HelloResource, introduced interface of CustomerResource, added big picture documentation
added eclipse file to gitignore
fixed typos
deleted HelloResource
changes after sem1: changed resource name of consumable service from jee7-showcase to crm-demo, added interface javadoc, deleted unused parameter in findCustomers(...), adjusted POM compiler plugin java target to 1.7 (due to the maven eclipse kepler java 8 support bug)
Merge pull request #1 from dhaeb/week1

Anpassungen nach dem ersten Seminar