Merge pull request #11 from springmeyer/master

improvements to the example.cpp
Cleaned up mml output, embeds mss in mml if a file isn't specified
Updated .gitignore
Fix for https://github.com/rundel/carto-generator/issues/12
Fix for change to displacements
Fix for building symbolizer

height is now an expression and symbolizer now has its own header
Removed title and abstract members
Renamed to xml2carto and cleaned up namespace usage
Update readme
Update makefile
ignore new name
Short term fix for text_symbolizer names
Dane's makefile fix
Cleanup
same temporary get_name fix
text-spacing should be a uint not a double
test xml style subsets
Switch to scons, based on parser SConstruct file
Cleanup
Better boost library finding