* fix windows and centos builds
update gitlab-build.sh
windows installer `parity_$VER_installer.exe`
rpm package `parity_$VER_x86_64.rpm`
* Update .gitlab-ci.yml
add cache ``target``
fix windows and centos arg's
* Update installer.nsi
add ``ethstore.exe, ethkey.exe and parity-evm.exe`` to windows installer
* Update cov.sh
add timeout to coverage test's (10 min per test)