Remove unused planning elements routes
Fix expected URL in PlanningElementsController spec
Merge pull request #591 from opf/fix/remove_unused_planning_element_routes

Remove unused planning elements routes
new version; updated changelog
Added syck gem for ruby 2.0 and yaml_migrator to
transform yamls between different serializers
e.g. syck to psych
Updated yaml_migrator to only select yaml columns
add option to diable browser cache for security reasons.
add changelog entry

[skip ci]
remove forgotten debug statement

[ci skip]
Migrated serialized yaml in core tables from syck to psych
added changed Gemfile.lock
Merge pull request #641 from opf/feature/rails3_migrate_serialized_yaml

Feature/rails3 migrate serialized yaml
new special version for plugin compatibility
Disable caching by default
Merge pull request #640 from opf/feature/add_option_to_disable_browser_cache

add option to disable browser cache for security reasons.