schema updates

[tom.baeyens]

Here are a couple of schema updates that I am committing:

Removed 2 columns in JBPM4_EXECUTION:

<property name="transitionSourceName" column="TRANSRC_" />
 <property name="transitionSourceIndex" column="TRANSRCIDX_" />

Removed a couple of columns in JBPM4_JOB

<property name="signalName" column="SIGNAL_" />
 <property name="info" column="INFO_" />
 <property name="processDefinitionId" column="PROCDEF_" />
 <property name="activityName" column="ACT_" />
 <property name="transitionIndex" column="TRIDX_" />
 <property name="eventName" column="EVENT_" />
 <property name="eventListenerIndex" column="EVTLSTIDX_" />