SOAP getTrackerFields do not longer list members from registered_users in in list field

Binding value added for fields in SOAP

Add docblock

Binding details for all fields

refactoring getAllValuesByUGroupList()

using the method created

fixing refactoring bug

fixing review mods

removing unused methods

Better naming

fixing tests broken by abstract method

create getNormalizedName method

using normalised name for ugroups in soap call

Change-Id: Ieb672abfd5d6e407623d2d49c80c0e9f76366fa8
Merge commit 'refs/changes/33/333/4' of http://gerrit.tuleap.net/tuleap into stable

* http://gerrit.tuleap.net/tuleap:
  SOAP getTrackerFields do not longer list members from registered_users in in list field
This is Tuleap 5.11.99.21