Fix share ratio text.
Update Changelog.
Allow 2 decimals when setting the share ratio. Closes #1303.
Fix missing separator in QDesktopServices methods
Merge pull request #1319 from Gelmir/fix_missing_sep

Fix missing separator in QDesktopServices methods
Add an option to copy a torrent file.

Add an action to the context menu of a torrent to copy its associated torrent
file (if exists) to a user-specified directory. Inspired by issue #1231.
When user clicks cancel do not display error message.
Improved file and error handling. Code cleanup.
Do not use QDir::separator anymore.