SERVER-14118 modify replset JS test to provide rs.add() coverage
Update errors.md for r2.7.2
SERVER-10069 Rewrite errorcodes.py so it captures multiline messages

- captures multiline messages, when possible
- no longer silently modifies source code. (for hygenic build)
- prompts user to reinvoke with "--fix" when conflict or zero code detected
- faster
Update errors.md for r2.7.2 with new errorcodes.py
SERVER-13635: DatabaseHolder goes through StorageEngine to create Databases
SERVER-13635 SERVER-1153: can choose heap1 at startup, but doesn't remotely work yet
SERVER-1153: insert and find works
SERVER-1153: turn off unit test until can clean library dependencies