Added aims_* prefix to all exported functions
aims_data, aims_filter_values and aims_expose_attributes now take a
string target rather than a string DOI as input argument
aims_data and aims_filter_values fail gracefully now if the input
filter parameters are incorrect or there is no internet connection
aims_data_doi is now the non-exported data_doi
Important changes pertaining to aims_data:
aimsdf which contains print, summary and plot methodsplot method for class aimsdf displays either a map or a time series
improved test coverage
Implemented summary datasets for the Temperature Loggers dataset via
aims_data
Implemented expose_attributes() to show which filters are accepted
by the different datasets
restrict filter_values to expel info on sites, series and parameters
only
Using parsedate to standardise date strings and account for time zone
Created new vignette explaining basic usage of package