using GMT offset instead of local w/ DST
using GMT
GMT offsets instead of DST issues
broken out separately
case when use_i == NA
coerce date
support for non-POSIXct
coerce to GMT offset date
coerce date function
support for non-POSIXct dateforms
fixed typo in resample e.g.
another typo in e.g.
additional args for resample_sim
simplifying w/ use of get_temp calling resample_sim
support for as.Date
clean up and simplification
using resample_to_field methods
updates to datetime matching and plot_val
Merge pull request #103 from jread-usgs/master

v0.3.1.1