Remove schema from ConnectorSession
Workaround for segfault in 8u20 due to JDK-8059299
Add catch all exception mapper for HTTP

Mapper logs the exception and request URI
Mapper returns the stacktrace a text/plain response
Add support for collection types to the verifier
Add config option to disable new optimized readers
Add support for Hive column oriented file formats

Add the HivePageSourceFactory to create ConnectorPageSource for to read a file format
Add framework for binding and testing HivePageSourceFactory
Add RcFilePageSource