Unexpected UI issue with the Back button on the phone: it kicks the user back out to the education.xml view. I added a ".. Parent Directory" option to handle this. Now when the user selects the ".. Parent Directory", they are taken to the parent directory.
Added a space buffer to the top of the freq_input.xml for a better UX
Merge remote-tracking branch 'origin/master'

Conflicts:
	app/src/main/res/layout/frequency_input.xml
Made the equation at the top of the frequency_input.xml display better
Fixed a typo in the equation at the top of the frequency_input.xml
Added TimeDomain.java and TimeDomainView.java
Changed everything to point to TimeDomain instead of RawData
Removed RawData.java and RawDataView.java
Added a larger space to the bottom of the frequency_input.xml so we could enter data in the last few EditText fields. They were being blocked by the buttons.