Add alias, unalias, configfile
- Add commands 'alias' and 'unalias'.
Behavior is almost identical to shell.
Aliases currently cannot override commands.
- Add command 'configfile'.
Allows loading / saving config files from command line.
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94b64bbf93cfdfaf0ee68c54cd60bd85865fcb47 1.0.2
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7b7810fee305fd420e6d1082000c833ca28803ac v1.3.1
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e8af5aa8bd1541bd7d06f5f08c27d0c16b176df4 v1.4.0