extract rename functionality into class.
adjust readme for roadmap and version issues.
add a path helper to work with wiki-paths.
perform some minor Gemfile updates.
extract expander into its own class.
replace seamless-test with helpful readable method.
let expand return the string of the expansion

Instead of directly printing to stdout expand
now returns the full expansion. It is now up
to the caller to decide what happens with the
expansion (in our case we still print it).
handle absolute paths as parameters for expand.
do not try to expand page-links which are titles

also do not generate a seam for the top-level
parent page.
use path helper in renamer.
move renamer and expander classes into own files.
bump version to 0.9.8.1

This includes code which fixes rename functionality
for ruby 1.9.3 (the old fix only worked for versions
above, and including, 2.0.0).
It also fixes the expansion of wiki-pages.
allow searching with list-return through copen

Includes the following new commands:

  - SWSearchList which search the same way as SWSearch does
    but directly presents the user with a list of matches
    through copen (quickfix-list).
  - SWSL is an alias for SWSearchList
  - directly add SWS as alias for SWSearch to prevent
    ambiguous commands.
fix library loading for non-rbenv users.
Merge pull request #42 from danchoi/38-expanding_wiki_pages

fix library loading for non-rbenv users.
Merge branch 'master' into 41-present_search_list_option
Merge pull request #43 from danchoi/41-present_search_list_option

allow searching with list-return through copen