panstarrs 0.2.3

Bug fixes and minor changes

The example with creating guiding pictures was removed due to the unavailability of magicaxis package on CRAN.

Functions ps1_search(), ps1_cone(), ps1_crossmatch() now support Forced Mean for DR2 release.
If there is no internet connection or the server API does not work, then invisible(NULL) is returned and an error message appears.

Functions related to catalog data retrieval return data types according to metadata. In particular, this applies to columns with the int64 type (thanks to bit64 package).
Some dependencies have been removed: attempt, dplyr, glue, magrittr, purrr, Rcurl, readr, rlang, stringr.
HTTP User Agent “panstarrs/{version} (https://CRAN.R-project.org/package=panstarrs)” has been added to GET/POST requests.
Vignettes have been updated.
Some internal functions has been removed.