Version upgrade change

Optimize the calculation method of property amount for RPCs.
Set the height to start total amount check, that the total amount is not allowed to be greater than INT64_MAX, for establishment of crowdsale.
Fix the bug that the remaining tokens were not sent to the issuer after the crowdsale closes.
Add some Integration testings for the crowdsale
Fix confirmations information in RPC whc_decodetransaction
Append the amount field to the return of RPC whc_gettransaction, identify how many WHCs user input to participate the crowdsale, for unconfirmed crowdsale participate transaction

How to Upgrade

Software download：https://github.com/copernet/wormhole/releases/tag/Earth-0.1.1-release
Compile & Install

Unix platform：https://github.com/copernet/wormhole/blob/master/doc/build-unix.md

OSX platform：https://github.com/copernet/wormhole/blob/master/doc/build-osx.md

Windows platform：https://github.com/copernet/wormhole/blob/master/doc/build-windows.md
Run and data synchronization

Please follow below command when one first run version 0.1.1：

wormholed -startclean=1 -daemon

After the data synchronization is completed for version 0.1.1, please follow below command as the software is restarted next time：

wormholed -daemon

Wormhole v0.1.1 will check the total amount of crowdsale from block height of 552,892, which must be between 0 and INT64_MAX, excluding 0.

Fix the BUG that the remaining properties of crowdsale are not sent to the issuer in version 0.1.1

commit info：https://github.com/copernet/wormhole/commit/af2a2f2556516affcb39a9585c351adda5b0c1a4
The situation caused by this BUG: when one crowdsale is finished, the remaining unsold tokens will be not sent to the address of issuer.

white paper https://github.com/copernet/spec/blob/master/whcwhitepaper.md
Yellow paper https://github.com/copernet/spec/blob/master/Wormhole-YellowPaper.md
spec https://github.com/copernet/spec/blob/master/wormhole-spec.md
rpc manual https://github.com/copernet/spec/blob/master/wormhole-RPC.md
test manual https://github.com/copernet/spec/blob/master/wormhole-testmanual-0.1.1.md