-Enable boards_dir option in PIO INI
-Remove defunct custom board file operations for PIO auto-build environment
-Remove now-defunct Teensy++ 2.0 PIO entry, replaced by `at90USB1286_DFU` and `at90USB1286_DFU` (using this entry always put AT90USB board boot loaders in jeopardy of being overwritten due to the very small size of the official Teensy++ 2.0 bootloader)
-whitespace
Prevents user from having to manually run through entire manual leveling process only to enable mesh so they can manually restore their offline mesh backup
Runs in parallel to TravisCI and runs *much* faster on same jobs. Finishes all examples configs in <8 min on cache hit; <10 min on cache miss. Cache miss is triggered on platformio.ini change. I'd suggest move to it entirely, but it is limited to just 1500 min of runtime per month and it isn't clear yet how much Marlin would need so suggest we implement in parallel like this, then observe. If the example builds don't catch issues, and 1500 min turns out to be plenty, we can switch to implimenting standard arsenal of tests in CircleCI and ditch TravisCI to gain speed improvement (although I do like seeing the varied Travis avatars staring at me ;).
I agree that hand-crafted tests would be better, but until we have that, this can't hurt.
After merging, you'll need to add Marlin project to CircleCI at: https://circleci.com
Example results at: https://github.com/fiveangle/Marlin/commits/bf-circleci_config
User could enable SERIAL_XON_XOFF on USB-native devices and it would not be enabled without warning, but M115 would report the capability as available.
* Auto-enable DISABLE_REDUCED_ACCURACY_WARNING if HOME_AFTER_DEACTIVATE enabled
If HOME_AFTER_DEACTIVATE, there is no need to warn on LCD since printer will home prior to starting print. Saves 60 bytes PROGMEM on AVR with U8g panel.
* Reduce lines used
* Reduce lines used
move from legacy precise to trusty build image
fix PATH not including buildroot/bin
remove symolic link to ~/bin as trusty travis image doesn't include it in PATH anyway
move from legacy precise to trusty build image
fix PATH not including buildroot/bin
remove symolic link to ~/bin
enable sudo
trusty travis image doesn't source ~/bin by default
avr requires sude
TravisCI "trusty" build dist isn't picking up build path causing travis checks to fail. Reverting to legacy "precise" dist while we investigate
pristine != precise
USBCON is definied by serial.h pullikng in MarlinConfig.h which in turn pulls in Arduino.h. Defining in later includes has shown to cause compile issues so removing all extraneous calls for and potentially easier future linker troubleshooting.
more USBCON unification
-Update Arduino IDE extension descriptions
-Set default motor currents if not defined in Configuration_adv.h
-Support for MINIPANEL LCD
-Support for choosing internal or panel SD
Dave JohnsonandScott Lahteine
