BLD New release: 1.1.0

This releases fixed important bugs in convolutions and add normalized
moments computations.

Full ChangeLog:
    * Better error checking
    * Fix interpolation of integer images using order 1
    * Add resize_to & resize_rgb_to
    * Add coveralls coverage
    * Fix SLIC superpixels connectivity
    * Add remove_regions_where function
    * Fix hard crash in convolution
    * Fix axis handling in convolve1d
    * Add normalization to moments calculation