Support multiarch names.

- follows the FHS compliant
- getLookupPrefixes improvement

Related to #329
Update phar file
patch Utils::detectArch for Fedora / RedHat #329
Merge remote-tracking branch 'origin/fedora'
Checking in changes prior to tagging of version 1.14.7.
remove version from composer.json, the recommended approach @​link https://getcomposer.org/doc/04-schema.md#version

Merge branch 'master' into develop

Conflicts:
	composer.json
Merge branch 'develop' of github.com:phpbrew/phpbrew into develop
fix PHP Notice: Undefined property: PhpBrew\BuildSettings::$disableVariants
add more variants to default configuration // PHP without ctype, filter, fileinfo, hash is not very useful