0.6.0

• Make g POSIX compatible and use sh instead of bash
• Cleanup and normalize g code
• Make g-install POSIX compatible as well
• Fix g-install breaking on envs without $SHELL
• Fix g breaking when using non-GNU wget
• Add handling of misconfigured $GOPATH/bin
• Add support for ash, dash, csh, and tcsh to g-install
• Fix user input source for g-install
• Fix and normalize error logging
• Fix POSIX syntax error on BIN_DIR check
• Fix stty command breaking on MacOS
• Fix version listing broken with BSD version of find
• Fix IFs using command exiting the script due to errexit
• Update docs to reflect latest changes and update roadmap