adding pandas explicitly to requirements
adding pandas explicitly to requirements

pandas version 0.12.0 required for formhub install
ultimateprogramer/formhub,GeoODK/formhub,wesley1001/formhub,wesley1001/formhub,SEL-Columbia/formhub,GeoODK/formhub,GeoODK/formhub,wesley1001/formhub,ultimateprogramer/formhub,ultimateprogramer/formhub,wesley1001/formhub,SEL-Columbia/formhub,SEL-Columbia/formhub,ultimateprogramer/formhub,SEL-Columbia/formhub