Polish Java chaincode metadata and improve .gitignore

Author: SurbhiAgarwal1

asset-transfer-ledger-queries/chaincode-java/.gitignore

@@ -1,2 +1,4 @@
 .idea/
 .gradle/
+build/
+bin/

asset-transfer-ledger-queries/chaincode-java/src/main/java/org/hyperledger/fabric/samples/assettransfer/AssetTransfer.java

@@ -28,8 +28,8 @@
         name = "ledger-queries",
         info = @Info(
                 title = "Asset Transfer Ledger Queries",
-                description = "The hyperlegendary asset transfer with ledger queries",
-                version = "0.0.1+SNAPSHOT",
+                description = "The Asset Transfer Ledger Queries sample chaincode",
+                version = "1.0.0",
                 license = @License(
                         name = "Apache 2.0 License",
                         url = "http://www.apache.org/licenses/LICENSE-2.0.html"),