graphics: basic terrain passibility
atlas: lots of changes to make atlas compile under linux
unix/X: more clipboard support - copy from 0AD to other programs
unix/debug: use sys_get_executable_name instead of hard-coded paths
... and lots of other misc. changes
This was SVN commit r4640.
- error codes now accessed as ERR::NO_MEM, INFO::OK etc.
- no more X-macros => the above are now recognized by visual assist
- error codes are defined by the module originating them (lib_errors has
some generic ones)
=> no full rebuild when adding some
- error descriptions are now in C++ files => can be changed without full
rebuild
added AT_STARTUP in lib.h.
This was SVN commit r4374.
