update pom to 6.1-SNAPSHOT

Change-Id: I6abc8a082e0b1b7aed514a23adc661c74d128a65
refine process model

Change-Id: Iaa316f7961bec4c21e519ad170f7842540ee6de7
refine process model

Change-Id: I8acfb854f779644b4b25f10759ae68d63015d377
refine process id & activiti version

Change-Id: Iec76241c53b29bc21855a670b57ec8cfdfbd2e66
[release/andreas.weise] prepare release 1.0.2-rc0
[release/andreas.weise] prepare for next development iteration
reference agito-bpm 6.1

Change-Id: I99e4cbd0eeb2414731eafcc3da843c631f27ba77