Fixes & New projections support & fix for phpunit 6

#48 projections rely on $sphere being defined by @achimha
#56 Added file EPSG27561 by @khalyomede
#55 Added file Lambert Centre France by @khalyomede
#57 add TWD67/TWD97 based on parameters from QGIS by @kiang
#58 Fixed a mistake in EPSG27561.php by @dboth
#57 Added EPSG3112 by @wired00
Autoload PHPUnit_Framework_TestCase for PhpUnit 6 by @julien2512