prepare next incoming stable release 2.22
phar version with --version switch will print the latest version rather than DEV
upgrade latest versions of components used by phar version
upgrade changelog
new stable releases of PHP 5.4 and 5.5
add new function setExcludeVersions() in abstract PHP_CompatInfo_Reference_PluginsAbstract class
fixed unit test with element exclusions (see GH-99)
fixed issue GH-99
prepare stable release 2.22
forgotten to fix php min version about SO_BINDTODEVICE constant
fix exclusion version about SO_BINDTODEVICE constant
stable release 2.22 is available
Merge branch 'develop'