Send position updates to RH where RH can not know the end position.

For example after G28 RepetierHost assumes to be at the homing-point,
but with a servo probe we are much higher. Now the RH-software-endstops
will prevent us from going down (if activated). With this patch the
internal position of RH is updated with `current_position[]`.

Patch-up to commits for Kana #3203.
Closes #3203.

Extend .gitignore

Improve Travis CI test

- Add shell scripts to help with managing configs
- Clean up .travis.yml file by using shell scripts
- Don’t download “astyle” – not needed and delays Travis results

Call buzz() directly from M428

Update the Hephestos 2 default config

fix spelling

Thermister -> Thermistor

Add pt_pt-utf8 language pack and fix some minor compiler warnings

follow-up the commit b82d91e

Fix extrudernum in MSG_INVALID_EXTRUDER

This is quite comprehensive. If probes are disabled in any case when they shouldn't be, I'm sure we will hear about it soon.

Delta-compatible extensions to M48

Added missing translations.

Stop print timer with M105/M109

Fix KEEPALIVE_STATE

follow-up the commit b82d91eca6

SERIAL_ECHO is not very good in printing uint8_t - so cast. to int.

Add return to NOT_BUSY for M105
Replace WAIT_FOR_USER with PAUSED_FOR_USER

Add Travis test for FILAMENTCHANGEENABLE

Improve the descriptions for THERMAL_PROTECTION

follow-up the PR #3180, #3183

Czech language specific changes

Patch drain_queued_commands_P

Fix a SNAFU that should have been caught in #3012

Also closes #3181.

Include M665 "ABC" parameters in EEPROM

Addressing #2773

Use const parameters in lcd_implementation_drawedit (etc.)

Partial implementation with reference to MarlinFirmware/Marlin#3011

Alternative fix to #3149