Clean up all the Qt5 *.pro files a bit. Now they should always work.

Also do a large clean up of the file operations in lumina-fm:
1) When doing copies of directories, make sure to properly copy all child files/dirs (no matter how deep)
2) Clean the order of directory copies so that you can successfull make a copy of a directory into itself (copy ~/Test -> ~/Test/Test for example)
3) Check for attempting to *move* a directory into itself and show a warning to the user about an invalid operation.
4) Get the total number of files/dirs to be operated on before starting operations. This allows the UI to be more detailed about what it is doing at that particular time.
5) If a directory fails to copy for some reason, don't try to copy all the children of that directory either (they will all fail and just bloat the list of errors)

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