fixed using common_oltp instead of tcs_catalog

fixed using common_oltp instead of tcs_catalog. Added check for connection object nullness in dataAccess.js
Merge branch 'master' of github.com:mekanizumutc/tc-api into mekanizumutc-master
Merge pull request #17 from lsentkiewicz/master

speed up contests sql queries
member registraion api - fixed using common_oltp instead of tcs_catalog
update development sh
Config cleanup
npm test change
merge stub apis and cache support
merge the winning submission of TopCoder NodeJS Stub APIs and Cache Support
Merge branch 'master' of github.com:cloudspokes/tc-api
Merge pull request #4 from cloudspokes/master

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