Implemented RequestItemService (working now)
Added catch clausules so that is thrown Problem in response if the request was not successfull
Implemented parsing RequestItem response (holds request response):
parsing reply code, reply text, note attribute "type", note value, request number & implemented error checking
Also added getters to parser

In Rest-dlf Connector migrated from old AlephItemId (MZK01000000421-000010) to new (MZK01001276830-MZK50001311815000020) because there are cases when is item defined by the old id unreachable.
Modified length checkers for that id.

Implemented PUT HTTP action & forwarding the output to parser.
If goes something wrong (basically reply-code in not 0000), there is Problem returned to the output. Else there is built new URL of successfull hold request & it is parsed requestId from it. Also there could be parsed itemOptionalFields.