fix myriad multiway join.
Merge pull request #169 from uwescience/fix_multiway_join_myrial

fix compile MyriaL to multiway join
add query status
fixing clangConnection var, renaming in clangserv
set up db file if not existing at the beginning
removing db checks and factoring server paths
fixed clangserv style
allows clang to run sql and myrial queries
editor.js: show datasets created on successful query
myria-web.js: fix profiling JS after uwescience/myria#573

@jingjingwang changed the JSON format, but only Myria code was fixed.
Need to fix myria-web, myria-python, etc.
update myria-python submodule
Merge branch 'master' into dhalperi-show-datasets-created
datasets: remove download link for big datasets

Can only download datasets where we know the size and fewer than 100M cells.
(Number of cells is # cols * # rows.)
update test_myria_up to test both large and small datasets

- add TwitterK
- add numTuples for both Twitter and TwitterK
- check that Twitter's download link does not show in the page (too big)
- check that TwitterK's download link does show in the page (small)
creating catalog for c from myriaweb
adding table checking on clang side
fix flake
Merge pull request #173 from uwescience/dhalperi-show-datasets-created

Dhalperi show datasets created
datasets: add sorting
datasets.html: icons when sorting