Use current cache to build up table index
get rid of Extended mapper
Use the correct version to keep track of where the index is
Merge remote-tracking branch 'upstream/develop' into PLFM-2751

Conflicts:
	services/workers/src/test/java/org/sagebionetworks/table/worker/TableWorkerIntegrationTest.java
test fixes
simplify changes
Merge pull request #1354 from marcel-blonk/PLFM-2751

Use current cache to build up table index