Add .norepo file for charset test for Travis

Add missing .norepo file

Reviewed By: @edwinsmith

Differential Revision: D1148742
Give RaiseArrayIndexNotice a catch block

It seems like it needs one

Reviewed By: @jdelong

Differential Revision: D1149295
Add ini flag for zend extension support, fix ini_get_all() test

Read-only as a lot of stuff happens at request init. The current test fails in the open source build as we aren't building the zend compatibility.

.skipif skips if either the extension's not built, or support is disabled at runtime

Reviewed By: @ptarjan

Differential Revision: D1149472

Conflicts:
	hphp/runtime/base/execution-context.cpp
Deal with obj-to-obj comparisons throwing exceptions

Apparently they can throw.

Reviewed By: aravind

Differential Revision: D1151115