BUG: FreeFileSync forgets automatic update setting on path change

[critternyc]

When FreeFileSync is run in portable mode and moved from one location to another, the setting to automatically check for updates under the Help menu is reset to the default: Check Weekly. If you uncheck Check Weekly and then move paths, it is reset to Check Weekly and a check for a new version is done immediately on next launch.

To Reproduce:
1. Install FreeFileSync in portable mode to a directory called ffs in a location of your choice
2. Run FreeFileSync.exe
3. Uncheck "Check automatically once a week" under Help - Check for new version
4. Close FreeFileSync and wait for all processes to close
5. Rename the ffs folder to ffs2
6. Launch FreeFileSync.exe

Expected behavior:
FreeFileSync starts, does not check for updates, and the "Check automatically once a week" option is not checked

Actual behavior:
FreeFileSync starts, checks for a new version on launch, and the "Check automatically once a week" option is checked

[critternyc]

This may or may not be a contributing factor to the longstanding bug preventing FreeFileSync from being launched from other processes that remain running: BUG: Starting FreeFileSync.exe from another process yields Error Code 32 (07 Mar 2014)