WIP: Added functions to convert trends to DataChunks and merge ts
Ordered trends value arguments to match FormaValue* args
Fully implemented functions, queries, tests for working with trends in pail
WIP: Integrating trends stored in pail into full workflow
Trends pail and timeseries merging defmains now tested as part of workflow
Added trends pail stuff to bash script
Converting trends->datachunks gives each object in same query the same pedigree
Added missing estend arg to new trends steps
Pedigree can now be generated on the fly w/in TrendsPail
Handle pixels with all nils in any trend stat field
Replace nils in time series with -9999.0
Add sanity check to TimeSeries* - provided end period must make sense given length of series
Modified stats funcs/queries to calc ts start/end dates correctly
Merge pull request #363 from reddmetrics/feature/fix-362

fixes for #362
Queries and helper functions for export to API
Fixed typo
Cleaned up and expanded docs, ensured that iso code is included in output
Handle NA value in output probs by screening that pixel out
Improve query performance by doing gadm join prior to wide->long conversion
WIP: api query with gadm v.2