Draft for Input_layer copied from Data_layer
Added input_layer to set of layers and to factory
Fixed input_layer to pass tests, added cat image to data to perform the tests
Added the option to resize_image to resize images using cv::resize while reading them
Renamed input_layer to images_layer
Fixed typos to pass test_images_layer
Enforce that new_height and new_width are both 0 or both > 0
minor readme polish
Draft development guidelines, link from README
Fixed command path in documentation
Merge pull request #187 from yosinski/doc-up

Fixed command path in documentation
Update README.md to fix missing } in bibtex
Merge pull request #120 from sguada/images_layer

Images layer: A data provider layer directly from images