[LPC1549] initial commit
[LPC1549] Fixed GPIO

Clean-up PinNames.h and GPIOrelated functions.
[LPC1549] put PINASSIGN0-15 to PINASSIGN[] on LPC15xx.h

and fixed typo on system_LPC15xx.c
[LPC1549] Added UART support
[LPC1549] Added SPI support
[LPC1549] Fixed us_ticker problem
[LPC1549] Added Arduino Shield Receptacles Names
[LPC1549] Corrected wrong pin name
[LPC1549] Added AnalogIn support
[LPC1549] Added I2C master support
[LPC1549] Added InterruptIn support
[LPC1549] Added export support
Merge branch 'master' of https://github.com/mbedmicro/mbed_private_nxp
Corrected wrong pin names
Merge branch 'nxp_merge'

Conflicts:
	workspace_tools/export/uvision4.py
Add target LPC1549 to release build_release.py
Merge pull request #182 from sg-/nxp_master_merge

NXP master merge