first attempt to detect mimetype from headers and ignore extension
file storage store and reads mimetype
mongodb storage, untested
no_storage patched for mimetype
test and cleanup mongodb storage
updated mixed storage with mimetype
removed unused code
merge with master
Improving support for filters.
Creating brightness and contrast filters.
Improving filters peformance.
Adding native (C) brightness and contrast filters for improved performance.
Ignoring binary ext libraries
Building C extensions before running.
Improving native filter algorithms.
Improving native filters.
Adding rgb filter.
Enabling and compiling rgb filter.
Adding rounded corners filter, no antialiasing for now.
Using fewer iterations as it still provides a good result.