Tony's comment on output format
Inline helper functions of label
Add option to return number of labels
Add test case for number of labels
add option full_output to hough_circ
Fix 64-bit multipage tiff writing segfault
Merge pull request #507 from zachrahan/freeimage-multipage-64

Fix 64-bit multipage tiff writing segfault
Merge pull request #496 from ahojnnes/label-performance

ENH: Inline helper functions of label and add number of regions as an optional return.
Add multipage TIFF unittest
Merge pull request #508 from zachrahan/freeimage-multipage-64

Add multipage TIFF unittest
Merge pull request #488 from sciunto/minor_docfix

ENH: Allow `hough_circle` to detect circles with centres outside the image.
Fix Emmanuelle Gouillart's name in the contributors list.
Refresh contribution guidelines.
Add upstream / username remotes.  Illustrate rebase.
Used  instead of deprecated function.
median filter outlier
histogram example
Find contours example
Fix imread from urls on some backends.

Some backends infer the image type from the extension. This fix just adds the extension to the temp filename.
Merge pull request #512 from mkcor/doc_fix-deprecationwarning

Used feature.peak_local_max instead of deprecated function