4 - Use .concat instead of + for arrays, #122.
10 - Rerelease after 1.0.8 - deps cleanup.
16 - Maintenance (deps bump, fix node 6.5+ tests, coverage report).
22 - Teach `addArgument` to accept string arg names. #97, @tomxtobin.
28 - Maintenance: moved to eslint & updated CS.
34 - Removed lodash dependency to significantly reduce install size.
41 - Maintenance: lodash update to 4.0.0.
47 - Fix parse `=` in args: `--examplepath="C:\myfolder\env=x64"`. #84, @CatWithApple.
53 - Relaxed lodash version dependency.
59 - Changed dependencies to be compatible with ancient nodejs.
65 - Maintenance release.
66 - Replaced `underscore` with `lodash`.
67 - Bumped version to 1.0.0 to better reflect semver meaning.
68 - HISTORY.md -> CHANGELOG.md
74 - Maintenance release. Updated dependencies and docs.
80 - Fixed #55, @trebor89
92 - Added `.npmignore` to reduce package size
98 - Fixed conflictHandler (#46), @hpaulj
104 - Multiple bugfixes, @hpaulj
105 - Added 70+ tests (ported from python), @hpaulj
106 - Added conflictHandler, @applepicke
107 - Added fromfilePrefixChar, @hpaulj
113 - Added [mutual exclusion](http://docs.python.org/dev/library/argparse.html#mutual-exclusion)
114 support, thanks to @hpaulj
115 - Fixed options check for `storeConst` & `appendConst` actions, thanks to @hpaulj
121 - Fixed option dest interferens with other options (issue #23), thanks to @hpaulj
122 - Fixed default value behavior with `*` positionals, thanks to @hpaulj
123 - Improve `getDefault()` behavior, thanks to @hpaulj
124 - Imrove negative argument parsing, thanks to @hpaulj
130 - Fixed parser parents (issue #19), thanks to @hpaulj
131 - Fixed negative argument parse (issue #20), thanks to @hpaulj
137 - Fixed 'choices' argument parse (issue #16)
138 - Fixed stderr output (issue #15)
144 - Fixed check for conflict of options (thanks to @tomxtobin)
150 - Fix parser #setDefaults method (thanks to @tomxtobin)
156 - Fixed pseudo-argument support (thanks to @CGamesPlay)
157 - Fixed addHelp default (should be true), if not set (thanks to @benblank)
163 - Fixed formatter api name: Formatter -> HelpFormatter
170 - Removed excess whitespace in help
171 - Fixed error reporting, when parcer with subcommands
172 called with empty arguments
178 - Fixed line wrapping in help formatter
179 - Added better error reporting on invalid arguments