fix permissions on k release
incorrect file permissions last time
remove .project from k-core

we can have the external tool builder commited, but having also the .project creates one extra item to ignore manually, as it remains tracked
and ignore .project
Merge pull request #1025 from dwightguth/assembly

fix permissions on k release
Merge pull request #1027 from cos/hotfix/remove-dot-project

remove .project from k-core