updated bundler to 1.5 as it is required for support of ruby platform 2.1
bug: featuresteps: custom field set,wp field check
timelines: custom field filters.

for now only for list and boolean custom fields.
intendation changed.
pass timelines_id for local custom fields filter.
integrative timelines custom field filter tests.

also adds these steps:
- the custom field <name> is enabled for the project <name>
- when i filter for work packages with the boolean custom field <name> set to <value>
- when i filter for work packages with the list custom field <name> set to <value>
Merge remote-tracking branch 'origin/dev' into feature/timelines_filter_custom_fields_3701
changelog.
use only custom fields for this project.
use the correct name of permission to edit work package notes
enable quoting after editing a note
fix tests. user needs view work package permission.
Replaced Issue added/updated with Work package added/updated and added a migration for the settings
added copyrights to migration
Replaced Issue with work package in settings for email notifications
use edit_work_package_notes permission to edit work package journals
added a space
Merge remote-tracking branch 'origin/dev' into feature/timelines_filter_custom_fields_3701

Conflicts:
	doc/CHANGELOG.md
add custom field values to api.
display custom fields in timeline.