Add macro to reorder lines by length.
Add macro to pare selected lines from the left.
Improve Left_pare: Keep selection after applying.
Improve Reflow_tower: Handle lines ending with slash ("/").

Also convert macro to Python, to process text easier.
Correct selecting text by length when text is Unicode.
Make code neater.
Deal with different line endings.
Merge pull request #1 from hongquan/master

Add macro to reorder lines by length.