Use unlimited numeric input on users/form for quota
Fix wrong or missing t-keys or translations
Fixed build link

When a new image is created and user clicks "build", then
new target image is being created, but there is no image version
yet for this target image. In this case we create default image version
for asssociated base image.

Fixes #379
Added cucumber test for image building
Merge pull request #370 from ifarkas/users_form_quota_enhancement

Use unlimited numeric input on users/form for quota
Merge pull request #393 from jzigmund/fix_tim_tkeys

Fix wrong or missing t-keys or translations
Merge pull request #395 from jprovaznik/build_link

Fixed build link on image show page