remove the IBoot from the contracts (#687)

Author: satyamakgec

contracts/interfaces/IBoot.sol

@@ -1,9 +1,7 @@
 pragma solidity ^0.5.0;
 
 import "../../modules/UpgradableModuleFactory.sol";
-import "../../libraries/Util.sol";
 import "./DummySTOProxy.sol";
-import "../../interfaces/IBoot.sol";
 
 /**
  * @title Factory for deploying DummySTO module

contracts/mocks/Dummy/DummySTOFactory.sol

@@ -1,8 +1,6 @@
 pragma solidity ^0.5.0;
 
 import "./ERC20DividendCheckpointProxy.sol";
-import "../../../../libraries/Util.sol";
-import "../../../../interfaces/IBoot.sol";
 import "../../../UpgradableModuleFactory.sol";
 
 /**

contracts/modules/Checkpoint/Dividend/ERC20/ERC20DividendCheckpointFactory.sol

@@ -1,8 +1,6 @@
 pragma solidity ^0.5.0;
 
 import "./EtherDividendCheckpointProxy.sol";
-import "../../../../libraries/Util.sol";
-import "../../../../interfaces/IBoot.sol";
 import "../../../UpgradableModuleFactory.sol";
 
 /**

contracts/modules/Checkpoint/Dividend/Ether/EtherDividendCheckpointFactory.sol

@@ -1,8 +1,6 @@
 pragma solidity ^0.5.0;
 
 import "./PLCRVotingCheckpointProxy.sol";
-import "../../../../libraries/Util.sol";
-import "../../../../interfaces/IBoot.sol";
 import "../../../UpgradableModuleFactory.sol";
 
 /**

contracts/modules/Checkpoint/Voting/PLCR/PLCRVotingCheckpointFactory.sol

@@ -1,8 +1,6 @@
 pragma solidity ^0.5.0;
 
 import "./WeightedVoteCheckpointProxy.sol";
-import "../../../../libraries/Util.sol";
-import "../../../../interfaces/IBoot.sol";
 import "../../../UpgradableModuleFactory.sol";
 
 /**

contracts/modules/Checkpoint/Voting/Transparent/WeightedVoteCheckpointFactory.sol

@@ -2,7 +2,7 @@ pragma solidity ^0.5.0;
 
 import "../libraries/VersionUtils.sol";
 import "../libraries/Util.sol";
-import "../interfaces/IBoot.sol";
+import "../interfaces/IModule.sol";
 import "../interfaces/IOracle.sol";
 import "../interfaces/IPolymathRegistry.sol";
 import "../interfaces/IModuleFactory.sol";
@@ -219,7 +219,7 @@ contract ModuleFactory is IModuleFactory, Ownable {
      */
     function _initializeModule(address _module, bytes memory _data) internal {
         uint256 polySetupCost = _takeFee();
-        bytes4 initFunction = IBoot(_module).getInitFunction();
+        bytes4 initFunction = IModule(_module).getInitFunction();
         if (initFunction != bytes4(0)) {
             require(Util.getSig(_data) == initFunction, "Provided data is not valid");
             /*solium-disable-next-line security/no-low-level-calls*/

contracts/modules/ModuleFactory.sol

@@ -1,9 +1,7 @@
 pragma solidity ^0.5.0;
 
 import "../../UpgradableModuleFactory.sol";
-import "../../../libraries/Util.sol";
 import "./CappedSTOProxy.sol";
-import "../../../interfaces/IBoot.sol";
 
 /**
  * @title Factory for deploying CappedSTO module

contracts/modules/STO/Capped/CappedSTOFactory.sol

@@ -1,9 +1,7 @@
 pragma solidity ^0.5.0;
 
 import "../../UpgradableModuleFactory.sol";
-import "../../../libraries/Util.sol";
 import "./PreSaleSTOProxy.sol";
-import "../../../interfaces/IBoot.sol";
 
 /**
  * @title Factory for deploying PreSaleSTO module

contracts/modules/STO/PreSale/PreSaleSTOFactory.sol

@@ -1,9 +1,7 @@
 pragma solidity ^0.5.0;
 
-import "../../../interfaces/IBoot.sol";
 import "./USDTieredSTOProxy.sol";
 import "../../UpgradableModuleFactory.sol";
-import "../../../libraries/Util.sol";
 
 /**
  * @title Factory for deploying CappedSTO module