Fixed parsing, so unmapped parts of lines that match a line pattern are tagged as unknown.
Added tooltip to show details of a line.
Made the text box the drop target instead og using a different div.
Prevent drops on other parts of page, so it doesnt make the browser load the file if you miss the target.
Pulled out format to a separate file.
Made loading for format-file work.
Page styling updated.
Added display of filenames for loaded files.
Removed log statement