[DB] New schema for better contact functionality
[DB] Fix schema and include migration SQL commands in CHANGELOG
[DB] Fix table names and add repository
First pass at frontend for groups
Merge branch 'master' into im-contacts

Conflicts:
	CHANGELOG.md
[NF] Adding contact groups form
../doctrine/schema/Entities.ContactGroup.dcm.xml

[IM] Updatinig groups view and setting created date for new groups
[IM] Adding contact group type constants
[BF] Bad column name (limit) in contact_group table. Temporary fix
[BF] If value was not found in array show index
[BF] Fixing badly understood idea
[IM] Appending fixtures wiht initial contact groups data
[IM] Adding form elements for new columns in contact table
[IM] Adding form view
[NF] Function to get array of contact group names
[HK] Tidying up
[IM] Adding groups and roles to contact
[IM] Adding new parameter parameters|p for seting url parameters from cli
[NF] New function to get contacts by group
[BF] Excluding inactive groups/roles form contact form