Added option to map to non-standard (classification) concepts)

Updated copyright year

Full error reporting when error occurs during index building. Updated

copyright year.

Setting minimum heap size to 1GB to support 32-bit JVMs

Vocabulary IDs, domain IDs and concept class IDs in the UI are now

automatically derived from standard concepts in the vocabulary (instead
of being hard-coded).

Vocabulary IDs, domain IDs and concept class IDs in the UI are now

automatically derived from standard concepts in the vocabulary (instead
of being hard-coded).

Modified index building routines to handle new format of Vocab files

(tab-delimited instead of comma-delimited).

Merge pull request OHDSI#4 from ericaVoss/patch-1

Fix URL and Add Acknowledgements

Created ANT file. Fixed wiki URL