QoL changes, trimmed deprecated feature

-Removed Save Provider Preference from program
--Was not doing anything, as Cell Number preference was saving it
--Removed references to this throughout code
-Made Update GUI display update type
--BETA, Minor and Major update types
--Changes the Yes button text based on update type
--Update type contained in Patch Notes
--Major updates are not necessarily BIG, but rather reflect a large gap between Major updates -- will generally be for #.n to #.n+1 versions
-Reformatted Preferences GUI -- All checkboxes should be evenly spaced
-Renamed some variables in Update.java
-Added auto-trust GMail server line to Email -- should fix javax.net.ssl.SSLHandshakeException people have been getting
-Changed version to 1.7.0