update INSTALL
Merge branch 'master' of github.com:mapmapteam/mapmap
Revert "Removed wxWidget prototypes"

This reverts commit 3fd17547764123c32ef508dcd4de39598a83df47.
Move wx prototypes to prototypes/wx

Please do not remove prototypes, unless it's to another Git repositoty
Some of the prototypes that were removed contained interesting ideas.
Thank you.