Improve build.sh -ota envs detection

Fix up build.sh error handling

* Change git detection to not accidentaly exit the shell
* Fix [ $par_build ] always being true
* Fix git-describe with shallow clone ("No tags can describe ...")

[fix]ON OFF switch in Microsoft Edge #1049

add images of ag-l4

Using toggle Switch (LUANI HVIO)

Normally you will connect a toggle switch to Luani's HVIO module.

improved CSS to comply with CODACY rules

also minor html fixes

Update Luani Module to 1MB Flash

This Module has an ESP-07 on it with only 1MB Flash!

Show APP_REVISION value in terminal and web

update hardware.h doc comment about LED_MODE

invert led on kmc 70011

add support for AG-L4 color desk lamp

LED_MODE_* defines were moved from general.h to types.h

Don't show alert on already set hostname

Using correct separator

Hotfix travis release condition

Travis pulls tag as branch, so 'branch = master' is never true.
Use same regexp as earlier build.sh did

build.sh rework

Separate test and release stages in travis