Changing "import by rdd" event name to "import"
Changing the "import" date for releasing participants

Since not all participants are necessarily imported using the data entry
or import mechanism the release participant operations now use the
create_timestamp column in the database to determine when participants
were imported into the system.
Fixing bug related to last commit
Removing .htaccess file and replacing with sample file
Ignoring non framework/app-specific files in the web/ directory
Adding "multi-participant" functionality to the service-release_participant mechanism

This is being done so that users can upload a file with UIDs created
by the participant report.
Merge remote branch 'origin/release' into develop