expandSchema updated to read new updated schema. expandSchema simplified via the introduction of new methods

preprocessing_plugins_list turned to preprocessing. the first item of the list initiates the proper preprocessing method. default added to distribution. view_results gadget added to input portal types

generic spreadsheett module to substitute case specific spreadshit modules. getContent not yet tested

refactored expandablefield that initiates a number hidden fields according to the maximum possible number of requested fields. Handle for choice change not yet implemented

expandablefield set uses select-onChange method updateFieldSet to update the fieldSet according to the users Choice. AddField uses try-catch to resolve error. startService dropped.