Log Message:
Update pear-Net_URL2 to 2.2.0.

2.2.0:
* Changed composer autoloader to classmap, fixes include path pollution

2.1.1:
* Fixed #20473: Normalize query and fragment broken

2.1.0:
* New: OPTION_DROP_SEQUENCE

2.0.12:
* Removed: OPTION_DROP_SEQUENCE

2.0.11:
* New: OPTION_DROP_SEQUENCE

2.0.10:
* Imp: composer for pear
* Fix: Documentation problem

2.0.9:
* Fixed #20418: Incorrect normalization of URI with missing authority
* Upd: Test for RFC 3986 Section 1.1.2 Examples
* Upd: Travis CI - PHP 5.6 added