made summary page show the current reading bigger for mobile devices
Made temperature reading for summary default to today
Revert "Made temperature reading for summary default to today"

This reverts commit 2c4b8f520cd32003415a3b4f61e089a51557a6ab.
Updated to ruby 2.1.2
Added tests and code for TemperatureReading to collection only todays data
maded summary controller and view handle dataRange parameter to pass to get_summary