Merge branch 'release/1.2.5' into develop
Added feature to open todo.txt file based on a command-line argument ("todo-file"). Closes Issue #40.
Made TTMAppDelegate override the applicationShouldOpenUntitledFile: method to ensure that an Untitled document is not opened when the "todo-file" command-line argument is specified.
Updated README file.
Merge branch 'feature/open-file-from-command-line' into develop
Bumped version number.
Merge branch 'release/1.2.6'