carapace

• ActionMultiParts now returns Action which improves reusability of Actions
• subsequently made some changes to the api (Action struct mostly) which isn't final yet and should break some things here and there (for now)
• custom actions now resided in rsteube/carapace-bin
• bash completion now has descriptions as well (thanks to https://stackoverflow.com/a/10130007)

xonsh: various fixes

xonsh: fix completion script (needs to check itself if it is responsible for completion)

basic support for flags with optional argument

e.g. tail --follow or tail --follow=name

shorthand-only support using cornfeedhobo/pflag

fish, powershell: fix empty description

• renamed parser binary to caraparse and moved it to rsteube/carapace-bin
• added ActionUserGroup
• added ActionKillSignals
• fix escaping for various characters

• elvish: replaced deprecated display-suffix
• updated ActionMultiparts as callback (initial version)

• determine shell using parent process name
• zsh: fix sanitized values

• initial standalone support
• elvish: snippet fixes and mktemp for callback
• wildcard positional completion

• added powershell

• added support for quoted values in bash/fish
• no space for trailing slash in bash (fix ActionFiles)
• added ActionDirectories

bash: support spaces in values

basic protection against command injection (simply removing specific characters)