Fix-up style and form validation logic

Show alert if no input on #password page
Do not fail with empty password when on #layout
Fix password selector

This reverts commit f01f2454cc.

Adding images for iWoole Smart LED Desk Lamp

Avoid implicit type="submit" buttons

NPM maintenance

Added BESTEK_MRJ1011

Bump npm version installed by travis
Update package-lock for latest npm version
Bump packages versions and clean-up unused
Missing datatables.js images to avoid warnings

Update ota.py

Inline getFreeStack and mention 2.5.0 helper method

Update password UI

[ImgBot] optimizes images

* revise first-time-use screen
* generate password (policy applies)
* hide/reveal password text for sta/admin settings
* changed autocomplete='...' for some inputs to avoid completion

* Fix env size formatting
* Windows support for ota.py
* Sort queue by board to speed up compilation
* Safeguard .pioenvs/elfs

*Total -- 5,085.22kb -> 3,964.07kb (22.05%)

/images/devices/geiger_scope_single_pulse.png -- 37.57kb -> 12.97kb (65.49%)
/images/devices/geiger_scope_following_pulses.png -- 39.24kb -> 14.18kb (63.86%)
/images/devices/geiger_espurna_configuration.png -- 246.97kb -> 122.93kb (50.23%)
/images/devices/geiger_espurna_status.png -- 324.66kb -> 166.03kb (48.86%)
/images/devices/geiger_grafana_dashboard.png -- 457.05kb -> 263.05kb (42.45%)
/images/devices/geiger_wiring_diagram.png -- 1,912.29kb -> 1,399.95kb (26.79%)
/images/devices/generic-geiger-diy.png -- 148.03kb -> 128.88kb (12.94%)
/images/devices/itead-sonoff-ifan02.jpg -- 13.15kb -> 11.55kb (12.15%)
/images/devices/mancavemade-esp-live.jpg -- 9.40kb -> 8.75kb (6.91%)
/images/devices/generic-ag-l4-3.jpg -- 231.74kb -> 216.98kb (6.37%)
/images/devices/generic-ag-l4-2.jpg -- 233.96kb -> 221.09kb (5.5%)
/images/devices/generic-ag-l4-1.jpg -- 200.47kb -> 189.93kb (5.26%)
/images/devices/generic-ag-l4-5.jpg -- 141.25kb -> 134.08kb (5.08%)
/images/devices/generic-ag-l4-4.jpg -- 165.97kb -> 157.64kb (5.01%)
/images/devices/workchoice-ecoplug.jpg -- 8.18kb -> 7.81kb (4.47%)
/images/devices/kmc-70011.jpg -- 9.19kb -> 8.79kb (4.38%)
/images/devices/schuko-wifi-plug.jpg -- 8.53kb -> 8.17kb (4.25%)
/images/devices/arilux-e27.jpg -- 26.28kb -> 25.28kb (3.8%)
/images/devices/intermittech-quinled-2.6.jpg -- 28.71kb -> 27.63kb (3.75%)
/images/devices/xenon-sm-pw702u.jpg -- 25.33kb -> 24.57kb (3%)
/images/devices/openenergymonitor-mqtt-relay.jpg -- 12.01kb -> 11.69kb (2.62%)
/images/devices/generic-v9261f.jpg -- 11.72kb -> 11.42kb (2.55%)
/images/devices/heygo-hy02.jpg -- 8.42kb -> 8.23kb (2.22%)
/images/devices/itead-slampher.jpg -- 14.88kb -> 14.57kb (2.12%)
/images/devices/neo-coolcam-wifi.jpg -- 13.18kb -> 13.02kb (1.19%)
/images/devices/itead-sonoff-dual.jpg -- 11.68kb -> 11.56kb (1.08%)
/images/devices/lingan-swa1.jpg -- 10.42kb -> 10.31kb (1.08%)
/images/devices/wion-50055.jpg -- 13.43kb -> 13.30kb (0.96%)
/images/devices/tonbux-powerstrip02.jpg -- 6.17kb -> 6.12kb (0.85%)
/images/devices/itead-s20.jpg -- 10.34kb -> 10.27kb (0.72%)
/images/devices/lohas-9w.jpg -- 14.33kb -> 14.23kb (0.72%)
/images/devices/itead-sonoff-4ch.jpg -- 9.50kb -> 9.44kb (0.56%)
/images/devices/itead-sonoff-pow.jpg -- 10.26kb -> 10.21kb (0.51%)
/images/devices/itead-sonoff-th.jpg -- 10.93kb -> 10.87kb (0.48%)
/images/devices/authometion-lyt8266.jpg -- 12.96kb -> 12.91kb (0.41%)
/images/devices/itead-sonoff-b1.jpg -- 13.40kb -> 13.35kb (0.39%)
/images/devices/huacanxing-h801.jpg -- 13.92kb -> 13.86kb (0.38%)
/images/devices/magichome-led-controller.jpg -- 15.67kb -> 15.62kb (0.34%)
/images/devices/itead-s26.jpg -- 17.73kb -> 17.67kb (0.34%)
/images/devices/itead-bn-sz01.jpg -- 15.80kb -> 15.75kb (0.33%)
/images/devices/itead-sonoff-led.jpg -- 16.03kb -> 15.97kb (0.33%)
/images/devices/arilux-al-lc01.jpg -- 16.07kb -> 16.02kb (0.33%)
/images/devices/electrodragon-wifi-iot.jpg -- 16.34kb -> 16.29kb (0.32%)
/images/devices/itead-sonoff-basic.jpg -- 16.40kb -> 16.35kb (0.32%)
/images/devices/itead-sonoff-4ch-pro.jpg -- 17.51kb -> 17.46kb (0.3%)
/images/devices/itead-sonoff-rf.jpg -- 18.77kb -> 18.71kb (0.28%)
/images/devices/itead-sonoff-t1.jpg -- 19.36kb -> 19.31kb (0.27%)
/images/devices/aithinker-ai-light.jpg -- 20.41kb -> 20.36kb (0.26%)
/images/devices/arilux-al-lc06.jpg -- 21.36kb -> 21.31kb (0.25%)
/images/devices/itead-sonoff-sv.jpg -- 22.08kb -> 22.03kb (0.24%)
/images/devices/itead-motor.jpg -- 23.11kb -> 23.06kb (0.23%)
/images/devices/itead-1ch-inching.jpg -- 24.33kb -> 24.28kb (0.22%)
/images/devices/generic-relay-40.jpg -- 26.88kb -> 26.82kb (0.2%)
/images/devices/exs-wifi-relay-v31.jpg -- 30.11kb -> 30.06kb (0.18%)
/images/devices/wemos-d1-mini-relayshield.jpg -- 30.27kb -> 30.21kb (0.17%)
/images/devices/witty-cloud.jpg -- 30.68kb -> 30.63kb (0.17%)
/images/devices/jorgegarcia-wifi-relays.jpg -- 30.79kb -> 30.74kb (0.17%)
/images/devices/generic-rgbled-10.jpg -- 35.41kb -> 35.36kb (0.15%)
/images/devices/jangoe-wifi-relay.jpg -- 37.46kb -> 37.41kb (0.14%)
/images/devices/tinkerman-espurna-h.jpg -- 43.03kb -> 42.98kb (0.12%)
/images/devices/nodemcu-lolin-v3.jpg -- 74.11kb -> 74.06kb (0.07%)

Rename cont_t for Core 2.4.2 and higher

Add new device - iWoole Smart LED Table Lamp

Another sync