fix(pom): update shade-plugin version

update shade-plugin version to fix AetherClassNotFound when building the project
https://cwiki.apache.org/confluence/display/MAVEN/AetherClassNotFound
create README.md to remember stuff
create .gitignore
Merge branch 'master' of https://github.com/rbraeunlich/karafee
Merge pull request #1 from rbraeunlich/master

fix(pom): update shade-plugin version