TCNOpen Code

Prevent NULL-pointer dereferencing

Ticket #86: fixed example

fix for #85, only duplicated packets (same sequence count) will be discarded

Update/Evolution number incremented

#84 if heap memory is used vos_memCount() sets all counters to 0 instead of generating an error

#82 & #83

Delete Ladder support sample program
delete example/ladder
delete example/TAUL

Add Ladder Support

#76 buffer to receive PD frames moved from trdp_pdReceive() to TRDP_SESSION_T

#79 adapted tlp_put(), tlp_publish(), trdp_pdPut() to correctly support the feature of initialising publishing of PD without starting to sent PD already by setting pData == NULL. Correct dataSize needs to be set.