fix to using ts type files in controllers folder

[hectorperdomo]

Modified regex expression handlerCacheFromDir function to exclude files where ".d" preceded ".ts" file extension.

var jsFileRegex = /(\.(coffee|js)|(?<!\.d)\.ts)$/;

This change allows you to use typescript import connect from 'connect'; instead of require('connect').

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[hectorperdomo]

@googlebot I signed it!

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[hectorperdomo]

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[hectorperdomo]

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