Fix #110, autojump_ignore_case now working properly
tweak documentation wording
tweak docs regarding minimum requirements
Add name(s) to AUTHORS
reformat doc strings, move config into own function, add global variable for testing purposes
add unit tests, run using: make test
Add dev section to README.md and update makefile to reflect new section.
minor version bump to v20-6
move config back to global space
Use -pcre-match in .zsh instead of =~.

Before zsh 4.3.5 =~ was not supported. This results in the message
'autojump.zsh:18: condition expected: =~'.
Merge pull request #125 from KenMacD/zsh

Use -pcre-match in .zsh instead of =~.
Remove unnecessary code from install.sh.

In the past the installer would modify the user's ~/.bashrc and thus needed to
find the current user's name and home directory. However, the installer no
longer modifies user's ~/.bashrc and getent also outputs error messages for
Cygwin users.
Test zsh version before using appropriate regex test conditional.

As best I can tell, ZSH introduced the "=~" condition somewhere around 4.3.5 or
4.3.9. In either case, autojump will use =~ for versions higher than 4.3.5 and
  -pcre-match for older versions of ZSH.
Implements #126. Options passed to j will now be parsed. -s short option for
--stat added, jumpstat alias removed.

Options passed to the `j` function will now be passed on autojump. As a result,
directories beginning with `-` are no longer supported.

A -s short alias for --stat is added. Instead of using jumpstat, use `j --stat`
or `j -s` instead.
remove references to jumpstat within manpages
Use zsh version agnostic approach regarding substring matching
Update scripts to use version agnostic pattern matching and corresponding documentation.
remove tmp files created from unit tests
tweak release target to build docs and test first
Fix #123, new installations were not initializing database properly.

Also added unit test coverage to check database initialization, saving, and
loading.  Unit tests also revealed that migration code was not working properly
(starts database from scratch instead of copying existing entries over).