20050404: version 0.2 - drawparallels and drawmeridians can now
draw labels at edge of map.
20050331: version 0.1.2 - now can handle negative longitudes (patch
from Michael Brady). basemap.interp can now handle irregular
(but still rectilinear) lat/lon grids.
20050203: version 0.1 released on SF.
20050202: Changed LineCollections.color to set_color in a try/except block.
(color was a typo in 0.71 and is deprecated).
20050130: no user visible changes. Uses new pyrex generated
C extension interface to proj.4 which is twice as
fast as the Thuban one.
20050124: some code reorg, fixed bugs in S. Hem. projections.
xmin,xmax,ymin,ymax Basemap instance variables renamed
to llcrnrx,urcrnrx,llcrnry,urcrnry. Added __call__
and makegrid methods to Basemap class.
20050121: proj.4 is now called via a C-library interface, instead
of using the proj command-line tool via os.popen.
20050119: fixed glitches in drawing of parallels and meridians.