v1.0, 14.04.2014 -- initial version
v1.1, 15.04.2014 -- required libs support
v1.1.1, 15.04.2014 -- fixed setup file
v1.2, 16.09.2014 -- invalidate cache on compiling error, support for custom logging
v1.3, 9.11.2014 -- install_requires added, support for django compressor 1.4 precompiler constructor
v1.4, 15.04.2016 -- python3, django 1.9, compressor1.6 support + backward compatible
v1.5, 22.07.2016 -- license changed