LinuxCNC 2.7.9 is released.  This release fixes some obscure bugs and
adds a couple of new features:

* A driver for Mitsubishi VFDs.
* Support for "auxiliary applications", such as NativeCam, that are
  distributed separately from LinuxCNC.
* Add a "Integrator's Manual", a work in progress with helpful
  information on how to build your own CNC machine.


Special shout out to *two* first-time committers in this release (we
hope to see more of you in the future!):

* Alexander Brock
* Joe Hildreth


And as always, thanks to our awesome community of helpers and
bug-reporters, and to the usual list of long-time committers:

* Andy Pugh
* Chris Morley
* Chris Radek
* Dewey Garrett
* Jeff Epler
* John Thornton
* Jon Elson
* Norbert Schechner
* Sebastian Kuzminsky


The full changelog:

  * support "auxiliary apps", distributed separately from LinuxCNC

  * docs: add a bit more info to position feedback ini setting
  * docs: sort board list in hm2_eth manpage
  * docs: fix pyvcp multi label description
  * docs: fix pyvcp example so it runs
  * docs: clarify return value in hal_pin_new(3) manpage
  * docs: add missing var section to index header
  * docs: add machine building info to integrator document
  * docs: add manpage for hal_parport realtime component
  * docs: add units info to halui max-velocity pins in manpage
  * docs: flesh out max-velocity pins in halui manpage
  * docs: fix incorrect info for stat.motion_type and stat.motion_mode
  * docs: code notes: a pose has 9 coordinates, not 6
  * docs: add hal_manualtoolchange manpage
  * docs: add info about remap debug messages
  * docs: fix paraport/parport typos
  * docs: fix pin names in thcud manpage example HAL config
  * docs: clean up the note about T0 handling
  * docs: add some info for the hal python module
  * docs: clarify an ambiguity about siggen in the HAL documentation
  * docs: add information about addf command in the HAL documentation
  * docs: add details on epp_dir command line parameter of hal_ppmc
  * docs: remove a footnote about the behavior of emc2 v2.4
  * docs: add or2 example
  * docs: fix description of USER_DEFINED_FUNCTION_MAX_DIRS in
    ini-config
  * docs: clarify g28/30 description
  * docs: add link to G54-G59.3 User Coordinates section
  * docs: clean up Machine Coordinate System section
  * docs: remove M6 from modal group description
  * docs: add links to machine origin from several places
  * docs: fix typos and markup problems all over
  * docs: add more information about the addf command
  * docs: sorted gmoccapy video links with headlines
  * docs: add a known problem with macros to gmoccapy docs
  * docs: fix cut-n-paste bug in mb2hal manpage
  * docs: expand on different ways of starting LinuxCNC
  * docs: document some features of the Axis GUI
  * docs: add info about the basic directory structure
  * docs: correct misleading descriptions of named parameters
  * docs: update info about 'save' command in halcmd manpage & help

  * Axis GUI: avoid unbounded memory growth in text widgets on stretch
  * Axis GUI: make tool info display widget larger
  * Axis GUI: remove unused .info.offset widget
  * Axis GUI: shorten tool touch off widget title text
  * gmoccapy GUI: removed unused code
  * gmoccapy GUI: added get_joints_amount() for compatibility 2.7 and
    master
  * gmoccapy GUI: new hal pin gmoccapy.ignore-limits
  * gmoccapy GUI: bug if no macros in ini file
  * gmoccapy GUI: bug in macro button handling
  * gmoccapy GUI: G96 bug solved
  * gscreen GUI: fix missing .themes folder error
  * halui: fix halui.program.run

  * gladeVCP: make CombiDRO compatible for both 2.7 and master
  * gladeVCP: fix delta scale pin not updating if wheel scroll used
  * gladeVCP: add missing icon image for hal_dial

  * pncconf: fix spindle command using wrong signal name
  * pncconf: fix sserial mode setting in HAL file

  * hal_ppmc: add command line arg to turn on/off port direction change

  * mitsub_vfd: add a driver for Mitsubishi VFDs

  * classicladder: fix sequential variable access
  * classicladder: fix whitespace errors

  * ilowpass: round the output instead of truncating

  * halcmd: waitusr: avoid race condition

  * hm2: better error message on unexpected pin descriptors
  * hm2_eth: don't segfault on interfaces without addresses

  * linuxcnc python module: add doc string for stat.motion_mode
  * linuxcnc python module: add doc string for stat.motion_type
  * linuxcnc python module: add a doc string for
    stat.queued_mdi_commands
  * linuxcnc python module: add EMC_MOTION_TYPE_* constants

  * hal python module: better doc strings for connect() and new_sig()

  * Interp: fix a typo in a cutter-comp error message
  * Task: set the stat struct member queuedMDIcommands

  * example g-code: fix Z value reported by rectangle_probe.ngc
  * example configs: fix hal pin names in gmoccapy_plasma
  * example configs: limit led without off color in gmoccapy_plasma
  * example configs: xhc-hb04.tcl: if prior connects, continue with msg

  * rtapi: better error message when failing to connect

  * uspace: allow calculated parameter array sizes

  * tests: let introspection complete before continuing in the t0 tests
  * tests: fixup hm2-idrom test to match new hm2 PD error message
  * tests: add a test of ilowpass with low gain
  * tests: reorg ilowpass test so i can add a low-gain test next to it
  * tests: add a test of stat.queued_mdi_commands
  * travis: manually uninstall gpl3 readline
  * build: fix link error on i686 with gcc, or maybe objcopy 2.27
  * packaging: add the new LinuxCNC_Integrator pdf to the doc package


--
Sebastian Kuzminsky

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