Initial frontend realms api index and show implementation
Frontend realms full representation shown in top level collections
Add frontend realms to api entrypoint
Changed cucumber user test

For some reason when running rails 3.2.8 with ruby 1.8 on travis,
validation if password is blank returns only message:
Must be a unique password with at least 4 character and at most 255 characters.

Although the test passes unchanged for ruby 1.9.

(cherry picked from commit 3bebbdd3e98023164d2ede1d96c92851e6724fba)
Merge pull request #296 from jistr/fix_travis_ruby18

Fix Travis 1.8 cucumber
Merge pull request #222 from martinpovolny/deployment-refactor

small refactoring in models/deployment
Merge pull request #297 from martinpovolny/backtrace_log

a small step on unifying the (error) logging
Merge pull request #257 from martinpovolny/instance_launch_test2

add test for instance.launch!
Merge pull request #292 from rwsu/frealms

API: frontend realms index, show, and entrypoint v2
fix issue #261