Begins nrf51822 gcc arm export
First pass at linker script
Makes sure the extension is .bin when using GCC_ARM
Begin export
Oops
Add nrf51822 to export target
Updates NRF51822 target defines
Adds basic tmpl file
Adds check for INITIAL_SP
Adds startup file
Merges linker scripts into a single file
Puts the NRF51822 test in a nicer place
Enables hex hook
Exporter outputs hex
Adds sreg concat
Updates clock value
cleanup
New PWM implementation

The old implementation suffered when SoftDevice was under use. The new
implementation is more robust.
Increase PWM timer precision
Merge branch 'upstream/master'