Add travis badge

Elliot Levin · Elliot Levin · commit 8c617bcae26f · 2017-07-18T15:45:43.000+10:00
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 dms.common.structure
 ====================
 
+![Travis CI Badge](https://travis-ci.org/dms-org/common.structure.svg?branch=master)
+
 An implementation of common data structures for use in domain models
 
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