Updates to theme
 - Error messages in terminal window now jive with the rest of the theme's error messaging.
 - Changed HTML tag colors from green to blue, to let them stand out more.
 - Subdued both breakpoint highlighting and breakpoint handling colors to be a bit darker.
 - Added 0xDBE support, including better highlighting for databases.  Fixes

 - Changed highlighting color, as it clashed with too many Darcula text
  boxes.

 - Slightly tweaked the color scheme for Groovy, as to not clash with
   highlighting too severely.

 - Added gradle wrapper for easier import/testing/troubleshooting.
Fix README (comma instead of period)