Mv compress option

[matthewvon]

Bring the compression option to cuttlefish. Developers want it (namely Matthew) and customers on mailing list are talking about how they disable compression in favor of ZFS compression. This needs to be available.

[michellep-basho]

+1 from Product

[angrycub]

+1 CSE

[joedevivo]

this should be unit tested.

[joedevivo]

Did a make clean, then a make compile and pulled all new deps. this branch isn't building for me:

Compiling c_src/eleveldb.cc
c_src/eleveldb.cc:334:26: error: no member named 'block_cache_threshold' in 'leveldb::Options'
                    opts.block_cache_threshold = memory_sz;
                    ~~~~ ^
1 error generated.
ERROR: compile failed while processing /Users/joe/dev/basho/eleveldb: rebar_abort
make: *** [compile] Error 1

[matthewvon]

rm -rf c_src/leveldb
make
make test

not my fault rebar is trash.

[joedevivo]

+1, thanks!