Merge pull request #9 from Draedalus/master

Merging Master into local
Several small edits.

Changed input type on EditText's to number.
Added Math for dec to bin, to oct.

Added methods for more math, added code to MainActivity to convert all
numbers.

Various small edits.
Merge pull request #10 from Draedalus/Local

Added decimal to binary and octal conversions and various small changes