SNMP core php extension

Current version

php53-snmp requires the following formulae to be installed:
autoconf 2.69 Automatic configure script builder
net-snmp 5.7.3 Implements SNMP v1, v2c, and v3, using IPv4 and IPv6

Formula history

Andy Blyler cleanup extension testing
Andy Blyler move snmp and gmp to seperate formulas