This is mostly a bug and regression-fixing release.

What's new since 0.3.1?

• Fixed a performance regression when cloning big repositories on OSX.
• git configuration items with line breaks are now supported.
• Fixed a number of issues with corner cases in mercurial data (such as, but not limited to nodes with no first parent, malformed .hgtags, etc.)
• Fixed a stack overflow, a buffer overflow and a use-after free in cinnabar-helper.
• Better work with git worktrees, or when called from subdirectories.
• Updated git to 2.7.4 for cinnabar-helper.
• Properly remove all refs meant to be removed when using git version lower than 2.1.