extend -D absolute_path option

Now arbitrary traces (such as exceptions, invalid calls) show
absolute paths when running neko and that option has
been used when compiling.

Also fix typo
Merge pull request #1895 from MarcWeber/development

add -neko-trace-absolute-path option
allow call to abstract 'this' because the underlying type could be a function
support TVars in promote_complex_rhs
more complex recursion
[as3] always make properties public (closes issue #1872)
ahem...
handle abstract casting during typing
[cs] fixed urlEncode not encoding '&'
Merge branch 'development' of git://github.com/HaxeFoundation/haxe into development
Http class now uses HttpResponse for callbacks. CS now supports async
fixes for HttpStatusCode
undone changes to Http callbacks.