Merge pull request #21 from andreimerlescu/hotfix/mutations

Added idempotent guard to New* methods

Merge pull request #19 from andreimerlescu/hotfix/alias - version bum…

…p 2.1.0

Fix type errors, comment accuracy, test hygiene, and harvest normalization

Merge pull request #14 from andreimerlescu/hotfix/bool-needs-value

Updated error handling and value assignment tests

Merge pull request #12 from andreimerlescu/hotfix/flag-var

Adjusted error handling and moved flag.Var to tree.flagSet.Var

Merge pull request #11 from andreimerlescu/hotfix/usage

Removed duplicate entries for WithAlias from UsageString

Merge pull request #10 from andreimerlescu/develop

Added WithAlias to Figtree

Merge pull request #9 from andreimerlescu/feature/usage

Activated the Usage func in the flag package on the tree

Merge pull request #8 from andreimerlescu/feature/alias

Aliases added!

Merge pull request #7 from andreimerlescu/hotfix/listmap-append

Implemented PolicyMapAppend and added tests for PolicyFlagAppend

Merge pull request #6 from andreimerlescu/hotfix/new-flesh

Fixed issue with lists by adding a policy