add footpath window
add path window invalidate and paint
Merge branch 'master'
add left over footpath window events
Merge branch 'master' into path-window
add path dropdowns and disabled widgets
Merge branch 'master' into path-window
add provisional and placement of paths
fix construct path bridge or tunnel button
improve footpath code
Merge branch 'master'
add cancel and set tool along with path refactor
add path removal
Merge branch 'master' into update_objective
Name peep variables for current train and car
Fix finding peep on ride news items

Peep's current_* variables were offset by 1. Also fixed comparison
between 32-bit and 16-bit ints.
Change peep news item enum names
Add rct_car sprite and tidy up news locator

Also add (x,y,z) coordinate variables for rct_peep
Fix comments
fix case and add author to source code header