TEST: fix mistake
FIX: fix angle convention
MAINT change HT return API
ENH: use heapq to select the best match
TEST: fix precision
TEST: fix bad subs
TEST: revert precision
MINOR: fix non ascii char
add missing import heapq
FIX: handle correctly main axis def
fix example according to new API
remove heapq
MAINT: np.pi -> M_PI
MINOR: add missing type
FIX: import M_PI
PEP8
Use libc.math.atan2
Miscellaneous fixes and improvements
Merge pull request #675 from sciunto/ellipseht_heapq_fix

Hough transform ellipse parameter fix.