Replacement TidyNet dll.
The umbraco packaged TidyNet.dll has a function that auto converts the following :-
en dash (hex 2013) to standard dash
em dash (hex 2014) to standard dash
left single quote (hex 2018) to standard single quote
right single quote (hex 2019) to standard single quote
single low-9 quotation mark (hex 201a) to standard single quote
left double quotation mark (hex 201c) to standard double quote
right double quotation mark (hex 201d) to standard double quote
double low-9 quotation mark (hex 201e) to standard double quote
In most cases this is not wanted so this package has a replacment dll that skips the conversion if TidyCharEncoding option in 'config\umbracoSettings.config' is set to 'UTF8' (default) or 'Raw'
Package based on post by Alexander Bryukhov at http://our.umbraco.org/forum/ourumb-dev-forum/bugs/8228-Can%27t-insert-em-dashes
If you uninstall this package you may need to manually rename /bin/TidyNet.dll.org.bak to /bin/TidyNet.dll