Squashed 'fhdps_utils/' changes from 8679f36..1c798a4
Squashed 'fhdps_utils/' changes from 8679f36..1c798a4

1c798a4 Added exponent.pro (called in quick_image) for nicely formatted axis text.

git-subtree-dir: fhdps_utils
git-subtree-split: 1c798a44d75a4532eb6e0cbf0551fc3434e8054f

miguelfmorales/eppsilon,EoRImaging/eppsilon