New Stuff
 - Support `--no-progress` for `nvm install` (#1422)
 - `install.sh`: allow user to explicitly opt out of nvm adding the source string (#1804)
 - Respect previously nvm-loaded node version when sourcing (#1315)
 - add support for `$XDG_CONFIG_HOME` (#1888)
 - `bash_completion`: Add support for `ZSH_DISABLE_COMPFIX` flag (#1911)

Fixes
 - Improve .nvmrc reading process (#1740)
 - `nvm debug`: Fix sed syntax error in nvm_command_info (#1528)
 - Remove $NVM_DIR trailing slash automatically (#1734)
 - `install -s`: `zsh`: ensure `shwordsplit` opt is set (#1719)
 - `ls-remote`: fix issues in zsh when using a mirror with a ton of entries (#1818)
 - Improve `nvm_is_version_installed` to check for a node executable instead of root dir (#1824)
 - `use`: Prepend instead of changing if shadowed by system dirs (#1830)
 - Improve and update Dockerfile (#1861, #1863)
 - `install.sh`: Print an error and exit the script if $METHOD is set to something unexpected (#1917)
 - Allow zsh users to have the nomatch option set (#1938)
 - avoid unbound variable (#1949)

Refactors
 - Speedup nvm_list_aliases (#1517)
 - `bash_completion`: Improve coding style (#1816)
 - [shellcheck] use `{ …; }` instead of `(…)` to group test commands (#1825)
 - [shellcheck] quote variables in for loops to avoid unintentional expansion
 - [shellcheck] ignore SC2230 errors
 - [shellcheck] Use `-n/-z` instead of `! -z/! -n` condition (#1955)

Tests
 - add `nvm install-latest-npm` tests for all node versions
 - fix failing tests on master due to npm registry SSL changes
 - Enable ccache on Travis CI to speed up compilation (#1947)
 - print out shellcheck version
 - avoid using shopt in zsh

Docs
 - add --tags to git fetch in manual upgrade (#1793)
 - fix failing if check in autoload script (#1821)
 - Grammar update (#1822)
 - fix for .nvmrc script (#1823)
 - add --no-use option to installation (#1839, #1840, #1862)
 - add instructions for installing a specific version (#1901)
 - Added fish nvm (#1926)
 - Add section on automatic `nvm use` in Bash (#1865)
 - improve instructions for manual install (#1930)
 - update README to fix docker run command flag order (#1925)
 - Improve md file syntax (#1864)
 - Add Ansible task example (#1964)
 - Improve indent of output block in GitHub Issue template (#1967)
 - fixing cdnvm on .bashrc (#1971)
 - Improve phrasing of 'nvm current' (#1974)