Exclude images from the Proofing Copy RTF, they appear as large
unreadable blobs of base64 text.
Merge pull request #152 from greyelf/proofing_copy

Exclude embedded images from the Proofing Copy RTF
Fixes #57 - a least on windows. Can someone else check the other supported operating systems?
twee: Add 'stacktrace' argument to displayError()

This was added to the base class in commit b2e7bca1, but unfortunately
not added in Twee.
twee: Handle None output

This can happen if there are errors.
Converting cut, copy, and paste to use the findfocus method.
Merge pull request #153 from RichardLake/master

Fixes Ctrl-A, -X, -C, -V for the passage title textbox
Merge pull request #154 from mthuurne/twee-stacktrace

Twee error handling fixes
Fixed construction of verification summary message

Do not apply len() to an iterator, apply it to the collection instead.
This got broken in aaa1bfdc.
Whitespace cleanup
pylint: Add configuration file for pylint 1.2.0
Removed unused argument from PassageWidget constructor
Removed unused argument from wordWrap function
Removed unnecessary semicolons
Removed unnecessary parentheses
Removed unused imports
Made computeCode an inner function of lineRectIntersection

This way, the classification constants and the min/max coordinates can
be shared between lineRectIntersection and computeCode.

Also make use of binary literals to improve readability.
Renamed functions from the 'images' module to match naming convention
Removed unused variables
Fixed indentation

Fixed indentation of PassageFrame.syncPassage's internal error function
and StoryPanel.changeWidgetTitle.