rename rawDatalog to rawQuery
add language arg when calling compile_to_json()
Merge branch 'master' into jwang_renameRawDatalog
update raco submodule with renaming fixes
myria_web_main: Execute - remove unused objects

catalog:
RACO no longer needs it when it's literally just compiling a physical plan to JSON

conn:
Was only needed for catalog
test language for submitted queries
Merge pull request #163 from uwescience/jwang_renameRawDatalog

rename rawDatalog to rawQuery