ERC20 Tokens EBIKE and Private Sale

Add Adddress to whitelist addToWhitelist(address)
Add List of addresses to whitelist addManyToWhitelist(listOfAddresses)
Add address from whitelist removeFromWhitelist(address)
Set new OpeningTime setOpeningTime(newOpeningTime)
Set new ClosingTime setClosingTime(newsetClosingTime)
Finish Private Sale FinishPrivateSale()

# Install Truffle and testrpc packages globally:
$ npm install -g truffle ganache-cli

# Install local node dependencies:
$ npm install

# Initialize a testrpc instance
$ ./scripts/testrpc.sh

# This will compile and test the contracts using truffle
$ truffle test

# Enable long tests
$ LONG_TESTS=1 truffle test