Fix currentmeter on STM32F10X, closes #74
Fix being unable to set lowpass filter to 5 for the MPU6000.
Fix various minor IDE warnings.
Avoid using flash size register on STM31F103 since some chips are
manufactured incorrectly.  Fixes #71.
Update LED strip code to allow configurable LED strips.

See documentation for details.
Fix typo in led strip documentation.
Improve readability of itoa and _i2a type conversion methods.
CJMCU - fix flash size to 64k.
Fix building of targets that don't define LED_STRIP.
Update default led strip config so there is always an orientation light
on at the front when the battery alarm is on.
Disable softserial port 2 on Naze and Olimexino targets when SONAR is
enabled without RX_PARALLEL_PWM because they use the same pins.
Allow led strip to show failsafe state.  Closes #76.
Update git attributes file
Merge branch 'master' into oled-ssd1306

Conflicts:
	src/main/common/printf.c
	src/main/main.c
	src/main/sensors/initialisation.c
	src/main/target/NAZE/target.h
Saving files before refreshing line endings
Normalize all the line endings
Ensure led strip is configured in updateLedStrip method to prevent crash
when enabling the feature from the cli.
Add DISPLAY feature to enable/disable the OLED display.  Add ARMED page
which is displayed upon arming.  Resume page cycling when disarmed.