restored Micro entry in boards.txt, made separate bootloader images for Leonardo and Micro.

hardware/arduino/boards.txt

@@ -26,7 +26,7 @@ leonardo.bootloader.low_fuses=0xde
 leonardo.bootloader.high_fuses=0xda
 leonardo.bootloader.extended_fuses=0xcb
 leonardo.bootloader.path=diskloader
-leonardo.bootloader.file=DiskLoader.hex
+leonardo.bootloader.file=DiskLoader-Leonardo.hex
 leonardo.bootloader.unlock_bits=0x3F
 leonardo.bootloader.lock_bits=0x2F
 leonardo.build.mcu=atmega32u4
@@ -36,6 +36,24 @@ leonardo.build.variant=leonardo
 
 ##############################################################
 
+leonardo.name=Arduino Micro
+leonardo.upload.protocol=arduino
+leonardo.upload.maximum_size=30720
+leonardo.upload.speed=1200
+leonardo.bootloader.low_fuses=0xde
+leonardo.bootloader.high_fuses=0xda
+leonardo.bootloader.extended_fuses=0xcb
+leonardo.bootloader.path=diskloader
+leonardo.bootloader.file=DiskLoader-Micro.hex
+leonardo.bootloader.unlock_bits=0x3F
+leonardo.bootloader.lock_bits=0x2F
+leonardo.build.mcu=atmega32u4
+leonardo.build.f_cpu=16000000L
+leonardo.build.core=arduino
+leonardo.build.variant=micro
+
+##############################################################
+
 atmega328.name=Arduino Duemilanove w/ ATmega328
 
 atmega328.upload.protocol=arduino

hardware/arduino/bootloaders/diskloader/DiskLoader-Micro.hex

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