Release 3.2

This is a long-overdue release, and yet mostly a bugfix one.

What's Changed

• Support functions calling compopt -o default and others, required for bash-completion scripts 2.13 to work
• Fix issue scripts using < <(cmd).
• Append / to directories, even under Bash 4.2 and 4.3.
• Avoid executing PROMPT_COMMAND when doing completion.
• Improve Bash process detection by @montag451 in #60
• Add eshell setup by @xiaoyuechen in #68

Full Changelog: v3.1.1...3.2