correct padding for gridrec
log output corrected
reconstruction ROI selection function is added
correct_fov needs more correction
Corrected if indexes fall outside the sinogram
xtomo ->  self
refs #22: Avoid zero division at normalization
median filter is now available for all axes
Merge branch 'master' of https://github.com/tomopy/tomopy into develop
tiff reader added
refs #33: uint16 and  uint8 save options is added (with correct scaling)
refs #33: data_min and data_max for scaling of tiff values is added
refs #34: 1D median filter is replaced with 2D median filter
refs #34: tiffs could be saved as float32, uint8 or uint16
BUG: tiff scaling for negative values corrected
refs #34: fftw is scaled according to array dimensions
refs #34: overwrite and delete functionality modified