send coverage reports to code climate when running on a CI server
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.
Merge pull request #636 from opf/feature/add_code_climate_coverage

Feature/add code climate coverage
Adds root id update statement for MySQL
Removes superfluous newlines
Adds rake task for quoting invalid data
Does not abort migration on missing entities

Displays all planning element type ids and planning element ids for
which no type or work package exists.
Handles MySQL collation error
Add changelog entry
Merge pull request #604 from opf/fix/mysql_data_migration

[FIX] MySQL data migration