Fix imports and suppress deprecation warnings
Use safe_as_int to check provided output shape
Update bento build
Move safe_as_int into utils
Merge pull request #992 from stefanv/warp_safe_output_shape

Safely handle non-integer output shape specification
Remove incorrect np.round statement (directly cast `m`)
Fix broken and circular imports
Use safe_as_int for input checking.
Merge branch 'master' of git://github.com/scikit-image/scikit-image into int_idx_patch
Merge pull request #1003 from JDWarner/join_dep_warning

FIX: Address non-int DeprecationWarning from NumPy
Mention which parameters to label are optional. Simplify label deprecation.
Remove unnecessary double import.
FIX: Use //= instead of /= to fix deprecation warnings in adapthist
Test invalid input for seed
Test invalid input for selem
Add full test coverage for corner_subpix and fix bug
Test union of differing geometric transforms
Test 90deg rotation for similarity transform
Fix docstring of skimage.filter.rank.threshold_percentile
Test invalid input for unwrap_phase