mrggsave 0.4.5

• New option mrggsave.res to set default resolution for devices
  like png() and jpeg() (#42).

mrggsave 0.4.4

• mrggsave() gains an argument called path.type which controls how the
  path to the figure file is rendered in the figure annotation; the default
  is "proj", which will render the path relative to an RStudio project
  file, if it can be found; alternatives are "none" and "raw"; path.type
  can be set through the mrggsave.path.type option (#38, #39).

• Unit tests were numbered and user stories added to build validation
  documents (#35, #37).

Merge pull request #20 from metrumresearchgroup/release/0.4.1

mrggsave 0.4.1

• Revert behavior where named list automatically uses the names for output
  file names #18
• Fix typo in mrggsave:::output_file_sep() title

v0.4.0

Breaking changes

• The default separator when auto-constructing file names is changed from
  underscore to hyphen; this is a breaking change that will result in different
  output filenames if users were using tag #2
• Use the unexported (but documented) function mrggsave:::output_file_sep()
  to globally change the output file separator character #12
• The prefix argument to mrggsave_common() now defaults to NULL; the
  Source graphic: annotation defaults to only showing the base file name
  of the plot

Other changes and refactoring

• If a named list of plots is passed (checked via rlang::is_named), use_names
  will be set to TRUE and names used for output filename #8
• Passing a list of plots generated by named_plots will set use_names to
  TRUE and the names will be use for output file names #8
• When a named list of plots is passed, the names are adjusted to remove
  spaces, periods and underscores when creating the output file stem; these
  characters are replaced with hyphens #8
• mrggsave_common() now has a labeller argument; pass a function to create
  the annotation for the plot; pass NULL to save a plot with no annotation #8
• named_plots() gains an argument called add_context; when TRUE, the
  context (usually the script name) will be pre-pended to the output file name;
  this argument is FALSE by default #8
• Add option called mrggsave.file.tolower which, if set to TRUE will pass
  the file stem through base::tolower(), making it all lower case, regardless
  of how the stem was generated #8
• Add ability to save to multiple devices on one function call; pass a character
  vector of devices or a comma-separated string as dev