allow --default for use action
Added MIX_ARCHIVES to for each elixir (Fixes #15)
Fix: checkout error results to always installing the lastest version
Fix: need_erl_17 testing not correct
alternate Arch linux identification
Git checkout updates

  * try to checkout and track the upstream
  * fall back to normal check if tracking fails
  * use v prefix for tagged releases
merged jsvisa #3d2528 issue #17
Merge branch 'jsvisa-issues'
refactor semantic version checking.  using all bash
distro check more robust
merged install script into kiex
Updates to curl usage
adding better update support for installer
update checks
silence errors from grep
pull down kiex for install and update
updating kiex install curl request
update instructions and shell config check
more updates to feedback on update
fix grep usage bug