How to remove {"contracts":{},.....} section when an error occur.

* Populus Version: populus==1.5.0b1

When I run: `py.test --capture=fd tests/test_greeter.py -s --disable-pytest-warnings`
It prints out:

```
E SolcError: contracts/eBlocBroker.sol:55:2: : Undeclared identifier.
E alper = 100;
E ^---^
E
E > command: `solc --standard-json`
E > return code: `0`
E > stderr:
E {"contracts":{},"errors":[{"component":"general","formattedMessage":"contracts/eBlocBroker.sol:55:2: : Undeclared identifier.\n\talper = 100;\n\t^---^\n","message":"Undeclared identifier.","severity":"error","type":"DeclarationError"}],"sources":{"contracts/ReceiptLib.sol":{"id":0,"legacyAST":{"children":[{"attributes":{"literals":["solidity","^","0.4",".7"]},"id":1,"name":"PragmaDirective","src":"0:23:0"},{"attributes":{"fullyImplemented":true,"isLibrary":true,"linearizedBaseContracts":[276],"name":"ReceiptLib"},"children":[{"attributes":{"name":"Interval"},"children":[{"attributes":{"constant":false,"name":"num","storageLocation":"default","type":"uint256","visibility":"internal"},"children":[{"attributes":{"name":"uint"},"id":2,"name":"ElementaryTypeName","src":"69:4:0"}],"id":3,"name":"VariableDeclaration","src":"69:8:0"},{"attributes":{"constant":false,"name":"core","storageLocation":"default","type":"int32","visibility":"internal"},"children":[{"attributes":{"name":"int32"},"id":4,"name":"ElementaryTypeName","src":"80:5:0"}],"id":5,"name":"VariableDeclaration","src":"80:11:0"},{"attributes":{"constant":false,"name":"next","storageLocation":"default","type":"uint32","visibility":"internal"},"children":[{"attributes":{"name":"uint32"},"id":6,"name":"ElementaryTypeName","src":"95:6:0"}],"id":7,"name":"VariableDeclaration","src":"95:11:0"}],"id":8,"name":"StructDefinition","src":"50:108:0"},{"attributes":{"name":"intervalNode"},"children":[{"attributes":{"constant":false,"name":"list","storageLocation":"default","type":"struct 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```

When I have a large contract `{"contracts":{}, .... }` consumes big space on my console. It basically dumps all contracts' code.

**Example:**

**[Q]** It is possible to remove `{"contracts":{},...}` section when an error occur inside my contract?

Thank you for your valuable time and help.