Include vendor css files in the build,
Append vender css files to less files in the compile

fixes #57

addresses #95 - still an issue as the relative referecnes to images are
different in the build and the compiled versions
fix typo
ignore .idea files
flatten vendor css files into the same location as the target css file so that relative paths are the same,
copy assets from src not build on compile so that the vendor css files aren't included in the compiled release
merge