Small optimization
Small optimization

Currently the `importRegex` doesn't match unless there is exactly one space between `import` and `"file.sol"`. If someone put two+ spaces (or zero spaces) between `import` and `"file.sol"`, then the files have to be compiled twice.
soad003/browser-solidity,serapath-contribution/browser-solidity,ethereum/browser-solidity,ethereum/browser-solidity,serapath-contribution/browser-solidity,Yann-Liang/browser-solidity,Yann-Liang/browser-solidity,soad003/browser-solidity,serapath-contribution/browser-solidity,Yann-Liang/browser-solidity,soad003/browser-solidity