File selection dialog returns string[]

[Derek Chafin]

The FileNames property returns an array of string and is used when MultiSelect is true. Since that is not the case we should use the FileName property instead. The filename can still be entered but it's annoying to have to copy and paste filenames manually

[Derek Chafin]

See pull request #3

[Johannes den Boer]

Sorry for introducing that error. Using Ctrl+c Ctrl+v to fast isn't always good.

[Patrick Schaller]

Merged in infomaniac50/keepasstruecryptmount/bugs (pull request #3) Use FileName property instead of FileNames after open file dialog OK. Fixes #15

→ <<cset 75837423f665>>