Added new function for resampling relative to vector of POSIXct dates.
added t_out arg to be passed to resample_time
removed old ncdf4 version forx64
smaller .nc e.g. data, adding field_obs
smaller .nc w/ matches to field data
created function for reading in field obs
modified and renamed to .csv and .tsv files
modified examples for shorter, newer .nc file
added field obs function and tools package
odd bug where dim(endT) = 1, dim(startT) = NULL
trunc_time function added
fix for stupid factors on file read-in
match to field sampling function
added test for unique
resample_to_field method added and tested.
v0.2.2, added tools, field validation methods
Merge pull request #34 from jread-usgs/master

v0.2.2, added 'tools' package and field val methods