update documentation with known issues (i.e. long standing bugs)
ran make_doc.sh
Macports command instead of link to Portfile
remove leftover syntax when docs were in ReST format
Documentation update provides Mac Ports command for install.
Update documentation and install scripts to reflect new minimum Python requirements.

Documentation and install scripts now instruct older Python users to upgrade
their Python version or install older versions of autojump.

'install.sh' now gets a -f|--force option, which makes the install ignore
Python dependency requirements.
Remove unicode string parsing in argument handling

Defining argument strings explicitly as unicode causes problems in Python v3,
and the arguments are tested anyway in encode and decode functions.
reformat changelog
restructure files, working make doc and make release
fix install.sh to reflect new locations, tweak documentation where necessary
split up doc building for manpage and readme.md
fix documentation formatting
Remove license from individual files, consolidate information into AUTHORS and LICENSE
Move database logic into database object
Move argument parsing into function, fix database class items, add preserve option
move match last pattern into separate funciton and disabled
minor reorganization tweaks
minor reorganization
minor refactoring
update shell scripts to use new tab completion argument --complete, update docs with new --preserve option