added CLEAR flag to delete options with --option CLEAR
Added build flags to cmke configuration -g -Wall -std=c++11
added libsquish cmake find and link libs
added implementation of addTileFile
moved helper functions to utility files
added forgot declarations for addTileFile and addFeature
changes to code structure to support doxygen comments and vim folding
niceness
added a dirty flag to help organise when to write the file data
implementation of writeFeatureHeaders and writeGrass
fixed mapSpec dimensions in mapconv.cpp
Merge branch 'master' of https://github.com/enetheru/MapConv