add js-test as diff

if fix

small fix for test's and js-build

https://github.com/ethcore/parity/issues/3185

[ci skip]
add darwin installer in master

close https://github.com/ethcore/parity/issues/3515

[ci skip]
fix S3_BUCKET in Windows build

[ci skip]
small fix in S# windows

[ci skip]
small fix

[ci skip]
small fix for S3 windows
temp off alpine

[ci scip]
restore test & js-build

[ci skip]
small fix

fix windows s3 and alpine

initial support alpine linux
fix https://github.com/ethcore/parity/pull/3548

[ci skip]

remove -Zorbit=off
switch to rust 1.13

remove ubuntu 14.04
remove tags from js-release

skip js-release in nightly builds
[ci skip]

* Build tray app for x64

* Fixed command

remove trigger from js-release
[ci skip]

prepare to nightly builds

Add i686
cache optimization
add triggers

add $NIGTHLY to var

$(git --no-pager diff --name-only HEAD HEAD@{1} | grep \.js | wc -l)

add $NIGHTLY ENV for future nightly builds

stages:
  - test
  - js-build
  - build

js-release
  only:
    - master
    - beta
    - stable
    - tags

rename stages

fix lint
remove rust-beta and rust-nightly test's
add new job 'js-test' 'js-build'

change tags `rust-test` - `rust-stable` etc
add rust stable, beta, nightly test's

fix lint error in gitlab-ci.yml

1. Builds only  beta, stable, tags
2. test script for check js changes in `test-linux`
3. `js-test` and `js-release` only for jg* ng* ui* brances

Optimize build's
1. remove arm* from master
2. `js-pack` + `js-test` + `js-lint`

* Check if already running in ui command

* Windows tray app

* Upadted CI scripts