bump NAN version
bump NAN version

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