Fixed testing when folders have an underscore
Update version to 0.5.0
Reset version to 0.5.x
Changed default download directory to the XDG folder.
Merge pull request #175 from pelson/default_data_dir

Changed default download directory to the XDG folder.
Fixed failing tests.
Merge pull request #177 from pelson/test_fixes

Test fixes
Fixed null points handling as a result of #173.
PEP8 fixes.
Merge pull request #181 from pelson/empty_shapefile_records

Fixed null points handling as a result of #173.
Modified logic in _project_linear_ring to enable combined lines to be returned as a single LinearRing.
Merge pull request #185 from esc24/contourfix

Modified logic in _project_linear_ring()
Merge pull request #184 from pelson/misc_test_change

Fixed testing when folders have an underscore
Fixed broken URL for GSHHS.
Merge pull request #199 from pelson/gshhs_url_fix

Fixed broken URL for GSHHS.
Merge remote branch 'upstream/v0.5.x'

* upstream/v0.5.x:
  Fixed broken URL for GSHHS.
  Modified logic in _project_linear_ring to enable combined lines to be returned as a single LinearRing.
  PEP8 fixes.
  Fixed null points handling as a result of #173.
  Fixed failing tests.
  Changed default download directory to the XDG folder.
  Reset version to 0.5.x
  Update version to 0.5.0
  Fixed testing when folders have an underscore

Conflicts:
	lib/cartopy/tests/mpl/baseline_images/mpl/test_images/web_tiles.png