Default Folder X 4.6.2
Merge pull request #2447 from Cottser/default-folder-x-4.6.2

Default Folder X 4.6.2
Update: Java 1.7.0_51

Update formula based on Issue #2441 and suggested formula by @hevisko.
Edits to suggested formula follow suggestions from @rolandwalker and
the homebrew-cask contributing guidelines.
Electrum 1.9.7
Merge pull request #2443 from goxberry/java-7u51

WIP: Java 1.7.0_51
java: add caveats for GUI applications as Eclipse