Checkpoint OPENDJ-1343 Migrate dsconfig
- Code cleanup on the StatusCli and UnistallCliHelper as they are linked to the LDAPManagementContextFactory.java which is in the dsconfig package.

- LDAPManagementContextFactory
  - Refactored the useStartTLS part.
  
- StatusCli :
  - Replaced Quicksetup return Code by opendj-cli return codes. The argument exception now throws CLIENT_SIDE_PARAM_ERROR(89) resultcode instead of ERROR_UNEXPECTED(1).
  - Replaced SUCCESSFUL_NOP(0) by SUCCESS(0).
  - Removed enum ErrorReturnCode.
  
- UninstallerCliHelper.java
  - Replaced ApplicationException by ClientException (opendj-cli).
  - Replaced import org.opends.quicksetup.ReturnCode by opendj-cli ReturnCode.
  - Code cleanup.
  
- CliApplication add ClientException to createUserData.