.BOINC Manager saved settings file has a space in the name

[Eric Myers]

When the BOINC Manager saves window settings and other state information it does so to the file called ".BOINC Manager", which has a space in the name. Spaces are generally bad in filenames in Unix, so I suggest that this be changed to .BOINC_Manager.

This has caused me problems in creating an rpm to install on Linux.

To be backward compatible the Manager could always write .BOINC_Manager but for reading it could look for the version with a space if the version with an underbar is not found.