Fixed import ordering.

Bumped version in documentation.

Fixed issue hyperledger-web3j#98.

Bumped version.

Bumped web3j version in docs.

Updated visibility of abstract methods.

Merge remote-tracking branch 'origin/master' into android

# Conflicts:
#	src/main/java/org/web3j/tx/ManagedTransaction.java

1. Fixed issue with contract deployment transactions being rejected d…

…ue to empty to address field.

2. Added fast param to geth start script
3. Bumped version.

Bumped version.

Merge remote-tracking branch 'origin/master' into android

# Conflicts:
#	src/integration-test/java/org/web3j/protocol/core/CoreIT.java
#	src/main/java/org/web3j/protocol/core/methods/response/EthSyncing.java
#	src/main/java/org/web3j/protocol/rx/JsonRpc2_0Rx.java
#	src/test/java/org/web3j/protocol/core/ResponseTest.java