Merge branch 'hotfix/debug_object'
Fixes a memory leak in SCAN, with OPT_SCAN_RETRY enabled.

When you instruct phpredis to retry the scan command in the event
of a non zero iterator but zero elements being returned, it was
leaking memory, as it did not free the previous result.

Addresses #501
Fix segfault with igbinary, fix #341
Allow integer connect_timeout in RedisArray

Addresses #520
Remove debug line
Merge branch 'int-ra-timeout' into develop