Merge branch 'master' of https://github.com/arduino/Arduino

Author: facchinm

build/shared/revisions.txt

@@ -5,6 +5,7 @@ ARDUINO 1.6.2
 * In platform.txt, pre and post build hooks can now be specified. Example: recipe.hooks.prebuild.0.pattern=echo "Hello {build.source.path}". Thanks @Wackerbarth
 * Windows and MacOSX JVM Xmx halved to 512M
 * Introduced starting splashscreen with progress status: will be used for notifying user of long running startup tasks
+* Available ports list is now generated in background: hence "tools" menu is much faster
 
 [libraries]
 * EEPROM: Replaced existing library with more complete implementation @Chris--A