arduino/Arduino — pull request #1522 by PaulStoffregen (2013-07-27 00:13:17+00:00)
Title: Help 3rd party installers find the hardware path

This tiny change, discussed on the Arduino Developers Mail List, will help 3rd party installers find the correct hardware path. It simply writes the hardware path and date the IDE was last run to the preferences. Future installers can find the preferences and look for this information to learn the location of the hardware folder.