Merge pull request #918 from opf/fix/internal_error_deleting_projects
Adds changelog entry
Merged release/3.0 into dev
Merge branch 'release/3.0' into dev
Merge pull request #945 from opf/fix/long_work_package_headings_4186

[FIX] Long work package headings 4186
Added changelog for 4186
allows to redirect to a back url on version#update
Merge branch 'release/3.0' into dev
Merge branch 'release/3.0' into dev
Merge branch 'release/3.0' into dev
Merge branch 'release/3.0' into dev
Merge branch 'release/3.0' into dev
Merge pull request #949 from opf/feature/version_update_back_url

allows to redirect to a back url on version#update
Changelog entry
Merged release/3.0 into dev
Gemfile: Allow not installing therubyracer
Gemfile: Move guard-test to development group

The guard documentation previously advised to put it into a seperate
group, but it no longer does that.
Gemfile: Remove execjs dependency, coffee-rails already depends on it
Merge pull request #960 from opf/feature/optional_therubyracer

Gemfile improvements: Optional therubyracer, guard in development group, no direct execjs
Merged release/3.0 into dev