Subtitler:Import MTL Text

The MTL text format is output of Cavena subtitler editors. Titles are separated by double returns. The first line contains title number, starting and ending timecode sparated by tabs. The following lines start contain the lines.
Note: the title numbers do not have to be in order and can contain suffixes.

1[TAB]10:07:49:22[TAB]10:07:53:15
In this building behind me I spent
over 70 nights and most days ...
2[TAB]10:07:53:19[TAB]10:07:57:00
during the war which lasted 77 days.