Merge pull request #40 from pnagy/master

Add timeout to the request handling
Merge pull request #41 from pnagy/master

make search and pagination better usable
Fix urlencode problem with table names.
Merge pull request #42 from starschema/urlencode-fix

Fix urlencode problem with table names.
handling meta data properties
increase request timeout
Use node-cache to caching meta data.