drivers/ft5x06.c:  Add additional configuration options:  Optimize if multi-touch capability is not used.  Add options to swap X/Y and thresholding to reduce the rate of false alarm reports (with no motion).

drivers/ft5x06:  Add a polled mode of operation for the FT5x06 in attempt to work around the fact that the LPCXpresso-LPC54628 chose a non-interrupt pin for the FT5x06 interrupt.  Driver is still not yet functional.

configs/indium-f7:  None of the configurations would build because the claimed to support buttons, but the button code does not compile.  Refreshed all configurations with the configuration tools that have all become corrupted.  Somebody has been hand editing config files and fucking things up!

net/tcp: Introduce tcp receive window control based on I/O buffer

NOTE: The algorithm is still experimental but useful for http streaming.

Signed-off-by: Masayuki Ishikawa <Masayuki.Ishikawa@jp.sony.com>

Approved-by: Gregory Nutt <gnutt@nuttx.org>

Fixed build of PCF8574 driver when its interrupts aren't enabled by config.

Approved-by: Gregory Nutt <gnutt@nuttx.org>

Merged in juniskane/nuttx-1/juniskane/battery_gaugeh-edited-online-with-bitbuc-1513594794596 (pull request #558)

battery_gauge.h edited online with Bitbucket

Approved-by: Gregory Nutt <gnutt@nuttx.org>

sched/sched: Remove DEBUGASSERT() in sched_mergepending()

Because this DEBUGASSERT() assumes that while loop executes only once.

Signed-off-by: Masayuki Ishikawa <Masayuki.Ishikawa@jp.sony.com>

Approved-by: Gregory Nutt <gnutt@nuttx.org>

arch/arm/src/a1x, kl, lpc11xx, lpc31xx, and nuc1xx:  Fix some compile warnings that I introduced with a possibly overzealous recent change.

arch/arm/src/sama5 and samdl:  Fix some compile warnings that I introduced with a possibly overzealous recent change.

arch/arm/src/sam34:  Fix some compile warnings that I introduced with a possibly overzealous recent change.

configs:  Still trying to get consistent name.  button driver expects board to define NUM_BUTTONS, not BOARD_NUM_BUTTONS.  That was changed in all board.h header files, but there are still references in configs/ C files to BOARD_NUM_BUTTONS

fs/fat:  Don't warn about the CONFIG_FAT_MAXFNAME being too large if long file name support is not implemented.

arch/arm/src/kinetis:  Fix some compile warnings that I introduced with a possibly overzealous recent change.

drivers/input/ft5x06.c:  Add a driver for the FT5x06 capacitive, multi-touch, touchscreen controller.  configs/lpcxpresso-lpc54628:  Add support for the the FT5x06.  Enable the driver as well as the apps/examples touchscreen test.  Untested on initial commit.

arch/arm/src/lpc17xx, lpc43xx, and stm32:  Fix some compile warnings that I introduced with a possibly overzealous recent change.

fs/nfs/nfs_vfsops.c: Correctly infer file type.  The file type is in struct nfs_statinfo_s's ns_type field, not in the ns_mode field.

configs/*/include;  Remove prototype of xyz_boardinitialize() from board.h files.  The authorative prototype is in arch/arm/src/xyz/xyz_start.h

configs/*/include;  Remove prototype of stm32_boardinitialize() from board.h files.  The authorative prototype is in arch/arm/src/stm32*/stm32*_start.h

arch/arm/src/lpc54xx:  Fix some GPIO interrupt configuration errors.  Add logic to acknowledge rising/falling edge events.  config/lpcxpresso-lpc545628:  Add an intermediate interrupt handler to support acknowledgement of rising and falling edge interrupts.

arch/arm/src/lpc54xx:  Implement GPIO interrupt support.  configs/lpcxpress-lpc54628:  Add support for the USER button.  Enable the apps/examples/button test in the NSH configuration.

arch/arm/src/lpc54xx: Complete coding of the I2C driver.  It is not yet functional and has not yet been seriously tested.  config/lpcxpresso-lpc54628:  Add support for I2C2 and for the I2C tool to the nsh configuration.

arch/arm/src/lpc43xx:  Add helper macros to simplify peripheral configuration for new drivers; rename some other helper macros to make their operation clearer.  Begin fleshing out the I2C driver.

    arch/arm/src/lpc54xx:  LCD.. Fix some miconceptions about how the video address lines are used.
    arch/arm/src/lpc54xx:  Fix some LCD BPP and BRG vs RGB settings.

arch/arm/src/lpc54xx: Fix some LCD clocking.  This eliminates the hang problem.  That is now recognizable albeit corrupted data on the display.