CORE+RPC: fixes for ResourcesTags

 - added javadoc for ResourcesTags methods in RPC
 - added test in core for some ResourcesTags methods
 - fixed SQL in selecting assigned tags from resource
Merge pull request #54 from zlamalp/fix_tags

CORE+RPC: fixes for ResourcesTags
GUI: fixed services selection when creating service destinations
Merge pull request #55 from zlamalp/fix_facility

GUI: fixed services selection when creating service destinations
GUI: fixed redirection to targetexisting on app form
Merge pull request #57 from zlamalp/app

GUI: fixed redirection to targetexisting on app form
Registrar: changed InternalErrorException to RegistrarError

 - changed type of thrown exception for better handling in GUI
Merge pull request #58 from zlamalp/reg

Registrar: changed InternalErrorException to RegistrarError
GUI: allow search through VO members to group admin

 - when adding new member to group allow to list/search all vo members
Merge pull request #59 from zlamalp/member

GUI: allow search through VO members to group admin
New method addDestinationsDefinedByHostsOnFacility

- Add new method addDestinationsDefinedByHostsOnFacility to ServiceManager in Core
- Add this method also to ServiceManagerMethod in RPC
- Add test for this method
GUI: fixed mail regex for app form

 - do not check max length of TLD, only min >= 2
Merge pull request #60 from zlamalp/gui

GUI: fixed mail regex for app form
Attr. modules: unixGroupName can work without GID

Now you can set unixGroupName without unixGID if unixGIDNamespace isn't
set on facility.
Merge pull request #61 from licehammer/unixGroupsWithoutGID

Attr. modules: unixGroupName can work without GID
Attr. modules: unixGroupName can work without GID

Addition to commit 678b82f74ff0b7124da622243fea48bd226ef762 (Now you can
set unixGroupName without unixGID if unixGIDNamespace isn't set on
facility.) which works only for resource's attributes. This one work for
group's attributes too.
Merge pull request #63 from licehammer/unixGroupsWithoutGID

Attr. modules: unixGroupName can work without GID
GUI: do not display regex textbox if using internal

 - on app form item configuration page, if custom regular
 expression is never used, then do not allow to enter one
Merge pull request #64 from zlamalp/form

GUI: do not display regex textbox if using internal
GUI: initial support for ServicesPackage

 - added object definition and necesary RPC calls
 - ServicesPackages can be created, deleted, updated
 and their services can be assigned/removed.