matplotlib Code

fixes for new gshhs data

add utilities for processing GMT boundaries

back off last commit, doesn't do the right thing in all cases.

check to see if Greenwich meridian is in map region. If not, some
speedups can be had.

Oops in last commit.

Bugfix: [ 1732274 ] No antialiasing with pie on wxpython
Reducing the sampling of the curve on the wedge looks much better.

Bugfix: [ 1745650 ] patch for mlab.py's comment handling
Comment handling had the potential to lose the last character of a
line. Slightly different from user submitted patch -- uses split()
instead of three lines of Python code.

Bugfix: [ 1757315 ] ValueError: Cannot set nonpositive limits with log
transform. The axes scales were not getting set back to "linear" when
cla() is called, so autoscale_limits gets confused on the next call to
plot().

minor formatting change to dependency report

Bugfix: [ 1808189 ] lw kwarg broken in errorbar (Thanks Joe Monaco).