[LPC1549] Added USBDevice support

[LPC1549] Added USBDevice support by va009039's code
[LPC1549] Fixed warnings by GCC toolchain and removed redundant code
[LPC11U68] Fixed warnings by GCC toolchain and removed redundant code
Merge pull request #360 from toyowata/master

[LPC1549] USBDevice support
Fix compiler warning (signed vs. unsigned comparison).
Fix compiler warning (signed vs. unsigned comparison).
[NUCLEO_F411RE] Add uVision4 exporter
LPCCAPPUCCINO] initial port
LPCCAPPUCCINO is the breakboard that has LPC11U37,
https://strawberry-linux.com/catalog/items?code=12045
Schematic:
https://strawberry-linux.com/pub/cappuccino-sch.pdf
modified README.md
Merge pull request #366 from bcostm/master

[NUCLEO_F411RE] uVision4 exporter template
Merge branch 'github.com/master'
Disable rtti for gcc.
Merge pull request #368 from chrta/gcc_disable_rtti

[Exporters] Disable rtti for gcc.
Merge pull request #365 from chrta/fix_signed_unsigned_compare

Fix signed unsigned compare in dsp library
Typos corrected in optparser info strings
[NUCLEO_F411RE] Add target HAL files
[NUCLEO_F411RE] Add target CMSIS files
Merge pull request #369 from bcostm/dev_NUCLEO_F411RE

[NUCLEO_F411RE] Add all target files
Added 'skipped' build list for build.py
Added new NUCLEO boards definitions to general tests
sendBreak() bugix proposed by mbed user 'chrta'
Removed unused code for reset MCU and runnit single test (old way: like in make.py)