Move prun from interpreters/ to system/;  And an NSH built-in appliation that can be used to execute P-Code files from the NSH command line

Create P-Code execution helper in apps/interpreters/prun; The P-Code binary format is functional except that there are still some modularity and kernel build issues that need to be addressed.

Update the displayed I2C on each get iteraction (not the same starting address).  From Ryan VanSickle

The alternate console device CONFIG_NSH_CONDEV must not be defined unconditionally.  This causes errors when using Telnet sessions.  This was solved by adding CONFIG_NSH_ALTCONDEV: CONFIG_NSH_ALTCONDEV enables or disables the feature then, if enabled, CONFIG_NSH_CONDEV provides the alternative console device name

Update configuration an make logic in order to select that the serial blaster task priority and stack size. From Bob Doiron

Updated changelogs and release notes in preparation for the 7.2 release.  Still need to do a little more before the release

examples/touchscreen:  Add a configuration option to indicate that there is or is not an architecture-specific initialization function

apps/netutils/ntpclient:  Add a primitive NTP client.  Initial checkin is untested and probably incomplete

Back out part of  610e2aa0c224e2936fe8009ef4a2351ce607067a: Need to be able to select USB console devices when there is no /dev/console enabled.  Noted by Librae

apps/system/usbmsc:  Back out kludge that is no longer needed with the recent fix to the USB MSC class

apps/examples/igmp:  Fill out empty Kconfig file; can now be built as an NSH builtin function.  From Manuel Sthn

dhcpd_allocipaddr() should not call ntohl().  The return value is already in host order.  From Brennan Ashton

NSH cat command now adds to newline at the end of the file so that the NSH prompt is always on a newline

NSH telnet: Use strncpy vs strcpy to avoid overrunning username and password buffers.  From Bertold Van den Bergh

Add CONFIG_DEFAULT_SMALL that will select default values for configuration settings based upon either more features or smaller footprint.  Turns out not be be useful for modifying existing defconfig files because the defaults do not apply in that case

unlink/rm can now be used on nodes in the pseudo-filesystem.  There is new configuration option to suppress these costly and mostly useless operations on the pseudo-filesystem

More changes to reduce complaints from CppCheck.  Some latent bugs fixes, but probably some new typos introduced