When running xcodebuild from terminal other plugins' log statements are not properly escaped

[yoiang]

Hey @robbiehanson , I love the plugin!

I'm unsure if this happens with any other kind of log output but when I run xcodebuild and any other plugin logs the coloration is not properly escaped for the terminal causing the log output to be all black and to fold back on itself.

Example unescaped:

[fg242,5,42;�[bg255,255,255;E | gcd:com.apple.main-thread: Current Application is not Xcode | {NSObject+XcodePluginLoad.swift:40:pluginDidLoad}
    �[;2016-03-16 12:52:48.465 xcodebuild[27101:1260091] +[MCLog load], env: YES
    2016-03-16 12:52:48.466 xcodebuild[27101:1260091] [MCLog] +[MCLog pluginDidLoad:](Line:43) +[MCLog pluginDidLoad:], NSBundle </Users/ian/Library/Application Support/Developer/Shared/Xcode/Plug-ins/MCLog.xcplugin> (loaded)