- Fixed serialization of limiters
- Hero can now can have several separate specialty nodes
- Fixed typo (speciality->specialty)
- Fixed several crashes related to commanders
- Improvements to specialty handling, bugfixes and temporary solutions for upcoming hero specialties in mods

git-svn-id: https://vcmi.svn.sourceforge.net/svnroot/vcmi/trunk@3103 4dfc6b2a-8b31-0410-aa91-d6c70e3ac834