This means that we no longer need to pass smart pointers to this in thisP arguments, since we can construct a new intrusive_ptr to the same object from a regular C++ pointer.

(This change is manually merged from the non_null_pointer branch)

This means that we are more explicit about type conversions.

allow opening set files in directories from File->Open dialog: they were returned as "x.mse-set\set.mse-set". Strip the last part.

Replace shared_ptr<InputStream> in Reader class with a regular reference, the thing that calls reader can take care of the lifetime of the stream.

Replace shared_ptr<OutputStream> in Writer class with a regular reference, the thing that calls writer can take care of the lifetime of the stream.

 * renamed 'tag' variable to 'reflector', which better describes its purpose
 * removed addAlias stuff, instead check for matching names 'manually'
 * removed backwards compatibility with <0.3.0 for templates, they are going to break anyway.

Fix #68: don't calculate list of fields sorted by tab order, just find the next/previous ones on the fly

Moved tab_index to Style (instead of Field), it makes more sense there, since it pertains to the layout of stuff on the card.
Added fancy mouseover effect to field borders. This might be slow, so I should add a setting to disable it.

TODO: document the changes

fix build on vs7.1 (older winapi version). EP_EDITBORDER_NOSCROLL doesn't exist there. We need a good way to test for it, or just upgrade to a new minimal winapi version

 * cannocial_name_form now outputs "_" where it used to use " "
   this simplifies some things, because now C++ names are also MSE internal names
 * added 'caption' property to fields. This is used instead of the name in NativeLookEditor, since the latter will now contain underscores.

Added ExportTemplate::byName
Use ExportTemplate::byName in main

fixed: write_image_file failed with --export with relative path, because the is-relative-to-target-dir check was wrong