Inform7 6M62 Win64 beta 4

Fourth beta of 64-bit Windows Inform 7, including versions 6L02, 6L38 and 6M62 of the compiler. This requires a 64-bit version of Windows 10. Changes in this release:

• The Find and Replace dialogs for the source panel now have a "Find All" button that shows all matches in the source code.
• The buttons for choosing which panels to view in the front-end are now, by default, vertical down the right-hand side, in order to match the Mac OSX front-end. There is an option in preferences (under "Advanced") to go back to the old way of having them horizontally along the top.
• Support for changing the DPI display resolution: if the DPI is changed (from the Display settings app, or by moving the window from one monitor to another with a different DPI) then the front-end rescales itself appropriately.
• A problem with the Chromium Extension Framework (which is used to display HTML in the front-end) worker Inform7 processes remaining running after the front-end has exited should now be properly fixed.