Change submodule info to text box instead of label

By @ch3cooli on December 13, 2011 08:26 (imported from Google Code)

What steps will reproduce the problem?
1.Context menu -> Log
2.Select a changed submodule folder, double click it
3.The prev and current submodule commit messages and hashes are shown

What version of the product are you using? On what operating system?
1.7.6

Please provide any additional information below.
It would be nice to allow copying the hashes to clipboard.
It would be better to show in a non-modal dialog.

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