D-Net

Change regular expression for valid username - Don't allow usernames that begin with period, underscore, hyphen

Change regular expression at createZombieUser- Allow username that begins with period, underscore, hyphen

Escape chars in regular expession for username

Change regular expression - Allow username that begins with period, underscore, hyphen

Allow username with dots

removing old package for the api and reconfiguring jersey with the new package name

Emailer to work with ICM mail server

MERGE redis branch 49848:50863

moving properties to dnet-openaire-users

Moved classes to dnet-openaire-users