Add replay code to Hyperleveldb port. #1106
Add "all" and "now" support.  Add macro for modification operation.
Rename SkipTo to SeekTo.  Make SkipTo no-op.
Comment about fileid assumptions.
Add LiveBackup code.
Merge branch 'develop' into hyper-replay

Conflicts:
	api/leveldb/leveldb_wt.h
Fix merge/conflict error.
Add Replay phase to LiveBackup and add to test program.
Merge branch 'develop' into hyper-replay
Fix valid operation check.
Add tests for ReplayIterator methods.
Fix __log_filesize to look for end in larger chunks.
Fix ReplayIterator::Valid() to retry if it's invalid. #1106
Merge pull request #1155 from wiredtiger/hyper-replay

Add replay code to Hyperleveldb port. #1106
Update to the current version of the autoconf macro we use to search for JNI includes (thanks, @ddanderson!).  Switch from AC_CHECK_FILE to AC_CHECK_HEADER to suppress cross-compilation warnings from autoconf.
Fix use of AC_CHECK_HEADER in JNI checks: set up CPPFLAGS beforehand.