Make DISABLE_INACTIVE_X, etc., true if missing

Send position updates to RH

Patch minor spelling error in cn, en, gl language file headings

Fix lost undef Y_MAX_PIN in pins.h

Change link to the document

Fix Fan KICKSTART

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[]`.

Sorting ot what else belongs to what if was not so hard.
But the static `ms = ms = millis();` was a bit surpising.

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

documentation/LCDLanguageFont.md moved to http://www.marlinfirmware.org/ at commit 12d0983757,
but http://www.marlinfirmware.org/ isn't working.

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.