Scintilla now appears functional, but serious glitches could remain.
Almost all unit tests pass with Scintilla enabled.  Only reformat-paragraph and add/delete comments fail.
Set default encoding to utf-8.
Rewrote the following QScintillaWrapper methods using low-level Scintilla calls:
get/setInsertPoint, get/setSelectionRange, linesPerPage.

Leo build: 20140902154819
Corrected a few nits reported by pylint.

Leo build: 20140902155003
Paren flashing now works with Scintilla.  I much prefer it to scintilla's paren matching.

Leo build: 20140902164503