Added close method to PImage
Merge pull request #2360 from sngl/ide-1.5.x-TFT-PImage-close

Added close method to PImage
Fixed missing NOT_AN_INTERRUPT constant in digitalPinToInterrupt()

Fixes #2379
Revert "Match return value to type in available()"

This reverts commit f40e4713542fa862d5b99b256a642e001a796988.
Added an hint for the buffer sizes.

See #2057
Fixes #2367
Updated revision log
Merge branch 'master' into ide-1.5.x

Conflicts:
	hardware/arduino/cores/arduino/HardwareSerial.cpp
	hardware/arduino/cores/robot/Arduino.h
[sam] Added -MMD flag to tell compiler to produce dependencies files

Now a full rebuild of the sketch is triggered only if needed.
build.xml: restored -z flag in tar creation
Introducing Atmel toolchain 3.4.4: see https://github.com/arduino/toolchain-avr