Added code to handle footnote- and inline-style markdown links, and convert between them (not exposed in the UI yet), GitHub issue #2
Added markdown link manipulation to UI, rearranged the menu to add a 'Markdown' submenu (Issue #2)
Added 'Help' menu, incremented version number
Now handling empty link URLs correctly for inline- and footnote-style conversions (Issue #3)
Incremented bundle version to 1
Changed bundle version to 6, and it will always count up (no longer resetting with each short-version increment). Also updated the manifest file.