Copy database/<sql_engine> role attributes to <sql_engine>

By doing this we can just use the postgresql/mysql cookbooks from the original
postgresql-/mysql-barclamps without changing all the attribute names.
imported mysql, postgresql and openssl cookbooks from the respecitive barclamps
Install rubygem "pg" from RPM on SUSE
remove database resource/provider from mysql and postgresql cookbooks

they conflict with the ones from the "database" barclamp
pg_hba.conf: write subnet+netmask instead of subnet+subnet
postgresql: fixed test for a working login:

connect to the address we told the server to listen on, not to
localhost
postgresql: fix 'database "db_maker" does not exist'

change password if role exists
Fixed mysql package list for SUSE
mysql: SUSE related changes
Added missing data_bags directory
Share the "db_maker_password" attribute between postgresql and mysql
python-client recipes and Database::Utils Library

Use postgresql/mysql::python-client to install the correct python bindings for the
selected database backend.

The methods in the Database::Utils Library provide help to set the correct
Parameters for the database and database_user resources, depending on the
selected database backend.
Use postgres 9.1 on SUSE
Added missing strings to locale_ addtions
Show "database" in the openstack barclamps list
Don't show the mysql option in the Proposal UI

We don't support mysql setups in SUSE Cloud
Install packages with 'action :upgrade'
Do not include a copy of the openssl cookbook here

It's already in barclamp-crowbar (exact same files), so no need to have
a copy here and to create file conflicts in the package. Note that
virtually all barclamps already depend on cookbooks in barclamp-crowbar,
so that should be safe.

https://bugzilla.novell.com/show_bug.cgi?id=776583
Add crowbar-status and crowbar-failed in schema

Otherwise, barclamp_mgmt_lib.rb will edit the schema and add them, which
will make the files differ from the ones in the package.

Part of https://bugzilla.novell.com/show_bug.cgi?id=776583
Provide 'max_connections' tunable in 'postgresql' chef recipe.

It was also added to the Crowbar proposal, so that the value can be adjusted. This choice
should be based on the amount of (Nova) compute nodes to deploy.