v0.11.11

• New: Add --current-branch option (-c in short option) to open current branch in browser. For example, when git brws opens https://github.com/foo/bar and current branch is some-branch, git brws -c opens https://github.com/foo/bar/tree/some-branch.
• Fix: Handle invalid empty branch name at -b option correctly (#26)
• Fix: URL is not correct when a directory path is given (#25)
• Improve: Update dependent crates