Updated: Config (apache, frontend, php)

Quote from i-MSCP Github (hotfixes)

Code

1. Updated: Config (apache, frontend, php)
2. Updated: Requirement library
3. Updated: Ubuntu 16.04 packages file
4. [ci skip]

Source: https://github.com/i-MSCP/imsc…bb6f78c559d557ed0b62b5866