0.4.8

• Remove all subrepo refs with clean --force
• Allow the error() function to accept multiple arguments
• Bug fixed where clone --force could change the tracked branch
• Give a detailed error message if the parent SHA could not be found
• Use the git configuration to determine the default branch name for the init command
• Add --force to fetch command
• Fix executable settings on installed files
• Remove shebangs from library only files
• Fix bash-completion for instances that used make install