Fix for avoid a zero division on _StringTable::resize.
Fix Dereference of null pointer on String::operator+=.
Fix ALDeviceList::GetDeviceVersion incorrect check of valid pointer.
Fix for issue #660 with stated preferred decal. (The more complex example of the two possible.)
fixed cmake compilation on linux
Merge pull request #666 from tdev/cmake_linux_fixes

CMake linux fixes
Merge pull request #670 from BeamNG/fix_string_dereference_null_ptr

Fix Dereference of null pointer on String::operator+=
Merge pull request #669 from BeamNG/fix_ALDeviceList_GetDeviceVersion

Fix ALDeviceList::GetDeviceVersion incorrect check of valid pointer.
Merge pull request #661 from Azaezel/grenade_decal

Grenade decal
Merge pull request #668 from BeamNG/fix_stringtable_zero_division

Fix for avoid a zero division on _StringTable::resize.