Adds beginning of script for Fray Jorge community dataset (small mammals table).
Adds annual, perennial, and seeds from 1989-2002.  Simplifies table names.
Adds precipitation table.
Fixes URL problem in precip table.
Fix cross-tab handling for FrayJorge script

1. Add the name of the column where the values from the cross-tab section
   are stored.
2. Add auto-number primary keys to address Issue #241 until it is fixed.
Fix doubled URL for FrayJorge precip table
Merge pull request #1 from ethanwhite/pr239-fixes

Pr239 fixes
Merge remote-tracking branch 'upstream/master' into FrayJorge
Merge branch 'FrayJorge' of https://github.com/embaldridge/retriever into FrayJorge
Merge pull request #239 from embaldridge/FrayJorge

Add Fray Jorge community database