Glyphs for +/- buttons
Merge branch 'master' of https://github.com/inexorabletash/travellermap
Add glyph for question mark
Swap in button glyphs
Merge branch 'master' of https://github.com/inexorabletash/travellermap
Add close button glyph
Use question mark image glyph
Merge branch 'master' of https://github.com/inexorabletash/travellermap
Use image glyph for close button
Tweak plus/minus glyphs
Merge branch 'master' of https://github.com/inexorabletash/travellermap
Tweak plus/minus glyphs
Merge branch 'master' into jstidy