EOL Conversion menu now operational.  Operates on a per-tab basis and applies your preference as a default to new tabs
Integrate zoom into settings manager.  Clean up some cruft.  Add short-circuit function for easier QsciScintillaqq access
Remove excessive calls to updateLineMargin()
Move read/write to docengine for consistency.
Load EOL preferences.  Initial implementation of safe copying of strings with NUL bytes.
File->Reload From Disk implemented.  safeCopy implemented.
Support for saving files with NUL bytes+all supported encodings.
UPPER and Lower case menu entries implemented.  Support for loading and saving in different encodings(Menu entries still non-functional).
Added NUL byte support to guessEolMode.
Merge pull request #13 from Teklad/object_rewrite

EOL Conversion menu now operational.  Operates on a per-tab basis