Better DS_ADD_TO_SUM and new EXPECTED_BOOL_IS_TRUE

Add opcache test assertino

Simplify opcache echo in travis config

Attempt getting travis to test with and without opcache

Cast priority queue nodes to zval* for gc_data

Allow priority queue to use any value for the priority

Disable allow_null for DS return types

Update changelog for 1.2.6 release

v1.2.6

Reduce gc_count on deque when head is at 0

Replace allocation macros with safer functions

Update README.md

Bump version to 1.2.5

Drop unneeded checks

Fixed buffer outflow during deserialization of objects
Issue manifests itself when using alternative serializers (igbinary)

Update .travis.yml

Update README.md

Update package version to 1.2.4

Remove rogue php_debug_zval_dump

Update release date

v1.2.4

Merge branch 'master' of github.com:php-ds/extension

Fix priority queue get_gc when empty

Update .travis.yml

fix #104 arginfo is all fucked up + 7.2 build support