replace flask-restful.reqparse with jsonschema
posting an empty request returns 400
test that required params are present
test commandLine type constraints
test user type constraints
test workingDirectory type constraints
should return 400 with extra properties
test environment only allows string values
Merge branch 'master' into json-schema

Conflicts:
	requirements.txt

Conflict was due to pinning requirements in master and adding a
requirement for the `jsonschema` module in this branch.  The current
version of the `jsonschema` module (2.4.0) was added to requirements.txt
remove unused simplejson import
Merge pull request #18 from mark-burnett/json-schema

Start using json-schema for validation