Spect test for wrong value format of YAML properties
Added an array with numeric properties and check is value format is correct
Merge pull request #26 from slawa85/feature/8419_internal_error_wrong_YAML_pdf_export
Add changelog entry
fixed dep in gemspec
Bump version to 3.0.8

Due to our (new) convention plugins inherit their versions from the
OpenProject core. The next stable release of the OpenProject core is
3.0.8.
Merge branch 'release/3.0' into dev

Conflicts:
	doc/CHANGELOG.md
Bump version to corresponding core version
Cleanup whitespace

Signed-off-by: Alex Coles <alex@alexbcoles.com>