git-p4son v0.4.1

• sync aborts as soon as p4 fails to replace a synced file, which happens on Windows when another process has it
  open. Previously the failure was logged as an unparsable line and the sync carried on. The workspace is left
  partially synced
• .git-p4son/ now ignores everything in it through its own .gitignore, created whenever git-p4son writes to the
  folder. Previously only state.toml was ignored, so aliases, review files and config.toml showed up in git
  unless the workspace .gitignore listed the folder
• Add sync --dry-run (-n), which prints the changelists a sync would visit without syncing anything,
  checking the workspaces, running hooks or prompting