Refactored Android App code
Fixed login bug (login credentials not being processed)
Removed scattered sysouts
Merge branch 'smit'
Fixed bug in null keys not considered expired
Added configuration to make use of Tomcat's SSL.
NOTE: Requires external configuration in tomcat.
Keystore file: ${catalina.home}/conf/customKeyStores/ThesisServer.jks
Keystore pass: warrior
Added settings activity to change associated files and URLs
Added file browser to select associated files
Major refactor on FileChooser.
Possible source of bug.
Untested