New Memory Manager for PHP7

New MM performance impact

^ 	               ^  php7 (18.08)	^  New MM ^ speedup ^
| blog             |           124.7|    128.4|    2.97%|
| drupal-6.13      |          1881.8|   1888.1|	   0.33%|
| fw               |	       405.8|    434.6|    7.10%|
| hello            |         12052.1|  11804.8|   -2.05%|
| qdig             |	       618.5|    641.2|    3.67%|
| typo3            |           648.8|    666.6|    2.74%|
| wordpress-2.1.1  |           290.0|	 313.6|    8.14%|
| xoops            |           170.2|    182.9|    7.46%|
| scrum            |           269.0|    296.9|   10.37%|
| ZF1 Hello        |          1589.4|   1664.1|    4.70%|
| ZF2 Test         |           377.2|    413.3|    9.57%|
| Wordpress-3.6.0  |           153.6|    165.4|    7.68%|
| drupal-7.27      |           258.8|    282.3|    9.08%|
| SugarCRM (login) |           206.1|    225.0|    8.68%|
| magento-home     |            52.4|     55.1|    5.15%|