finishing up automatic examples testing with Makefile in root directory
changed the host of api.datalanche.com to external instead of default
add a new column 4
correct the columns' names to match the create-table.py' nomenclature
add process termination script when encounter error
Delete select.php

this file is renamed to select-all.php
specified the schema that the tables belong to
Merge branch 'master' of https://github.com/wcao101/php-datalanche
deletion of select.php
add exit(1) for terminating process once encountered non DLException, correct constants.
removed uncessary spaces
Merge pull request #43 from wcao101/master

Finish up examples testing with Makefile in root directory