Merge pull request #9 from mistercrunch/fixes

Denser graph view
Making the sqlachemy db connection a config param
Merge pull request #10 from mistercrunch/db_conn

Making the sqlachemy db connection a config param
A few tweaks while running core_cx
Merge pull request #11 from mistercrunch/tweaks

A few tweaks while running core_cx
health check + reload dags
Fixes
Merge pull request #13 from mistercrunch/tweaks

Fixes
hive_hook: Using -f with a temp file instead of -e
Merge pull request #14 from mistercrunch/tweaks

hive_hook: Using -f with a temp file instead of -e
Using a decorator to specify operators default args
Merge pull request #15 from mistercrunch/default_args

Using a decorator to specify operators default args
Merge pull request #12 from mistercrunch/reload_Fix

health check + reload dags
Reviewing the master command's logic
Merge pull request #17 from mistercrunch/tune_master

Reviewing the master command's logic
moving to tornado server + consistent num_runs across all pages
Merge pull request #16 from mistercrunch/tornado

moving to tornado server + consistent num_runs across all pages
Minor
Making code metadata win over what's in the DB
Merge pull request #18 from mistercrunch/tune_master

Making code metadata win over what's in the DB