Need to add advanced_cache.h header for 8.6.7

rocks_snmp_1.4e

class Cache now defined in stat_table_impl.h

Needed default constructor/destructor

Merge pull request #3 from matthewvon/master

Need null StatsTable constructor/destructor for clean library use.

gradle compatibility (fix release 1.4b)

labels for 1.4b were wrong. this is release containing gradle updates

gradle library build compatibility

Adjust stats_table.h to make gradle library build friendly.

Sync up with 1.4 at matthewvon repository for new table properties

rocks_snmp_1.4a

Merge branch 'matthewvon:master' into master

some printf calls needed stdio include for clang 10

Merge pull request #1 from stardog-union/printf_includes

add missing includes for printf calls