add config folder for api-key and api-secret for example testing, modified the examples scripts so as to test the example automatically
add circle.yml for running example testing on circle.ci
correct the circle command for post section in machine section
remove npm install section so as to let circle ci to run npm install by itself
modified col2 to timestamptz, modified col3 to text from integer, add col4 for holding long string, rename column name to col in select-join.py
modified dropColumn to object type instead of array type to avoid error
removing uncessary testing script
change locations of auto_exams and create_sample_tables bash script
remove uncessary config folder, just left config.json alone
modified the location of auto_exam bash script
remove the sript for checking the config.json on auto_exam
removed extra spaces of config.json
correct the location of examples
add verbose flag to curl on auto_exam and overide the host location
Merge pull request #5 from wcao101/master

pull request for finishing up node-datalanche example tests