- changes evaluated_format_properties_ptr to unique_ptr
- refactors group symbolizer helper to keep scope by
having each "thunk" own its helper
- glyph_info can now be noncopyable
- format node children now need an owner for their
evaluated_format_ptr so the enclosing parent layout
now allocates and holds pointers in a deque
- plus other noncopyable/move constructor fixes
- Implementation by @herm for GSOC 2012 (http://mapnik.org/news/2012/10/06/gsoc2012-status9/)
- C++11 port, improvements, optimizations by @artemp
- Testing and integration with master by @springmeyer
- Thank you to all the support from @behdad along the way
- Thanks for help testing @toton6868, @stephankn, @nirvn, @mfrasca, @simonsonc and many others
Refs: #2073,#2070,#2038,#2037,#1953,#1820,#1819,#1714,#1634,#1547,#1532,#1319,#1208,#1154,#1146
