Generic filename. Simplified variable names.

+ Changed filename to a generic name, regardless of version.
+ Changed variable names to make them more intuitive in the help viewer.
+ Added an additional decimal point to the version number
Added ability to count number of subtitles.

+ Added counter for number of subtitles
+ Reformatted the main if statement to account for counting number of
subtitles.
+ Added a few misc comments
v0.6.0 Option to insert new subtitle. Other Fixes.

+ Added option to insert a blank, 0 length subtitle at specified time in
00:00:00,000 format
+ Added additional comments and help
- Removed superfluous method