Let Travis install ordereddict for Python 2.6, and ttest 3.3, 3.4 too.
Let Travis install ordereddict for Python 2.6, and ttest 3.3, 3.4 too.

jstnlef/pika,vitaly-krugl/pika,hugoxia/pika,vrtsystems/pika,benjamin9999/pika,reddec/pika,Tarsbot/pika,skftn/pika,shinji-s/pika,Zephor5/pika,pika/pika,zixiliuyue/pika,knowsis/pika