Multiple minor fixes:
- fixed starting armies of some heroes, including Bron #1602
- (debian) added vcmi-dbg package with debug information
- proper randomization of hero secondary skills, fixes #1603
- second capitol will show up as disabled immediately #1604
- proper deserialization of boost::variant
- empty file will no longer crash JsonNode parser
- fixed some compiler warnings


git-svn-id: http://svn.code.sf.net/p/vcmi/code/trunk/@3637 4dfc6b2a-8b31-0410-aa91-d6c70e3ac834