Use partition() & strip() to find filename_tapped

Also, reuse the make_tableview1() function.
Finish getting rid of namelength
Remove global statement for lst and view
Sort earlier, all = a list comprehension of dirs
Remove extra 'x' in format(), fix for issue #2

Changed 47 to 48 and removed space to fix issue #2.
Use full_pathname to avoid repeatedly creating it
Merge pull request #4 from cclauss/patch-2

Use partition() & strip() to find filename_tapped