use new abstract-leveldown test
use new abstract-leveldown test

No9/leveldown,MathieuCassagne/leveldown,ralphtheninja/leveldown,Level/leveldown,juliangruber/a-native-module,gastrodia/leveldown,juliangruber/a-native-module-without-prebuild,chjj/rocksdown,mafintosh/leveldown-prebuilt,mafintosh/leveldown-prebuilt,phillipj/leveldown,MathieuCassagne/leveldown,ralphtheninja/leveldown,Level/leveldown,gastrodia/leveldown,jmanero/flat-rocks,jhead/leveldown,jmanero/flat-rocks,mafintosh/leveldown-prebuilt,phillipj/leveldown,timkuijsten/leveldown,MathieuCassagne/leveldown,No9/leveldown,jmanero/flat-rocks,jhead/leveldown,ralphtheninja/leveldown,ralphtheninja/leveldown,MathieuCassagne/leveldown,Level/leveldown-mobile,timkuijsten/leveldown,chjj/rocksdown,snowyu/node-nosql-leveldb,juliangruber/a-native-module,phillipj/leveldown,jmanero/flat-rocks,phillipj/leveldown,snowyu/node-nosql-leveldb,mafintosh/leveldown-prebuilt,ralphtheninja/leveldown,jhead/leveldown,No9/leveldown,juliangruber/a-native-module,No9/leveldown,Level/leveldown-mobile,Level/leveldown-mobile,Level/leveldown,juliangruber/a-native-module-without-prebuild,snowyu/node-nosql-leveldb,juliangruber/a-native-module-without-prebuild,timkuijsten/leveldown,snowyu/node-nosql-leveldb,chjj/rocksdown,timkuijsten/leveldown,gastrodia/leveldown,MathieuCassagne/leveldown,Level/rocksdb,No9/leveldown,phillipj/leveldown,juliangruber/a-native-module,juliangruber/a-native-module,jhead/leveldown,mafintosh/leveldown-prebuilt,chjj/rocksdown,Level/rocksdb,Level/rocksdb,jhead/leveldown,gastrodia/leveldown,gastrodia/leveldown,jmanero/flat-rocks,timkuijsten/leveldown,Level/leveldown-mobile,Level/leveldown-mobile,juliangruber/a-native-module-without-prebuild,juliangruber/a-native-module-without-prebuild,snowyu/node-nosql-leveldb