After two months of development and testing it's now time for a release candidate

NEW: Cleanup heartbeat values after a period of time: store daily, weekly, monthly, quarterly and yearly values
NEW: Display heartbeat for certain periods: last 24 hours, daily, weekly, monthly, quarterly and yearly
NEW: Heartbeat is looking for the last 5 minutes if there is no record available yet
NEW: If module "chart" is enabled then the dashboard can display nice charts for the collected data
NEW: Collect file data and watchdog info during heartbeat
NEW: Collect heartbeat info from all domains during cron. This can be used to implement a regular monitoring system, the data gets collected in a new database table
NEW: We now get feedback from remote sites if there is a encryption key mismatch and provide a link in the error message to define new encryption keys
CHANGE: Code improvement around chart creation
CHANGE: Heartbeat on domain lists is now disabled by default
CHANGE: Operations list: use a default group for orphaned items and then sort groups and their items alphabetically
CHANGE: Collect operations from all domains, not just from the main domain
CHANGE: Properly merge subform from remote server when editing server settings and do the same thing for domains as well
CHANGE: Show a "Wait" message while Ajax grabs historical data
CHANGE: Properly manage the changing content in the info-pane of a server/domain
FIX: Find the correct last value for heartbeat requests
FIX: Heartbeat toggle button now also works in the fixed table header
FIX: User the correct object (server vs domain) in building messages
FIX: Edit server details now allows colons but still not protocolls

NEW: When installing a new server and after pushing AES keys to the remote server, DRD will then automatically get the operations and available domains from thatremote server automatically
NEW: Validate URL when editing a server
NEW: Do not allow to change the URL of a server once it's been saved
NEW: Include drupal version as filter in server and domain list
NEW: Include more icons in the url, alias and heartbeat column
NEW: Include an icon in the heartbeat header to switch heartbeats on and off
NEW: Include an icon in the name column to indicate that there you can edit the domain or server
NEW: Indicate refreshed rows for 5 seconds with a green background in the first column
NEW: Include an icon in the status column to indicate that there is more when clicking on it
NEW: Refresh the list after queued operation if an operation has refresh property set to TRUE
NEW: Clicking on drupal messages removes them from the page
NEW: Display drupal messages also from ajax calls
NEW: Implement heartbeat information from all displayed domains
NEW: Show useful status information while the DRD server is working on the queue
NEW: Execute the operations in queus, which allows multiple tasks in parallel and hence will improve performance significantly
NEW: Allow to build sequences of operations to be executed, e.g. drd.info is collected right after cron or collecting update information
NEW: Filter for server and domain lists
NEW: Tagging for server and domains
NEW: Local action in server list to access all domains
CHANGE: Remove Ajax and Autocomplete callbacks from the admin trail as that causes some unwanted side-effects
CHANGE: Change the form for actions/operations so that the contained fields are blocks, not inline anymore
IMPROVEMENT: Allow removal of messages by a click on a pseudo-button above the messages
FIX: Small CSS issue
FIX: Solve the problem with the wrong link to the config page when installing drd_server on a new server
FIX: Avoid execution of JavaScript on other pages than server and domain lists
FIX: Skip disabled servers with remote operations
FIX: Make sure that we do not reset remote operations after pushing AES keys when installing a new server