GeoDict bug fix

Merge pull request #155 from mhearne-usgs/bounds_within_fix

Fixed geodict contains, getboundswithin and isaligned methods to deal…

Fixes contains method

Allows for imprecise extent comparisons.

Removed useless block of code that only caused problems

Merge pull request #147 from mhearne-usgs/vanuatu_fix

removed test block that only seemed to cause problems. Weird.

Numerous bug fixes

Merge pull request #146 from mhearne-usgs/readerfix

A number of bug fixes to handle edge cases with ShakeMap, GroundFailu…

Removing dependency on osgeo

Merge pull request #145 from mhearne-usgs/osgeofix

Removed use of osgeo, using higher level pyproj instead

bug fix update

• Updated code to handle situations where read request is completely outside grid bounds (returns grid filled with pad value)
• Updated writer for netcdf and hdf to accommodate new attribute requirements for GDAL and rasterio

Bug fixes, new tiff writer feature

Merge pull request #143 from mhearne-usgs/interpfix

Added new global functions for converting geodicts to affine objects …

Fixed a bug in Grid2D _getInterpCoords() that popped up in some edge cases around the 180 meridian.

Merge pull request #142 from mhearne-usgs/shakefix

Fixed bug in grid2d where interpolating two grids where one of them c…

Fixed a bug in shakegrid.save() for grids that cross 180 meridian

Merge pull request #141 from mhearne-usgs/shakefix

Shakefix

Fixed a bug with padding around rasterio reads.

Merge pull request #140 from mhearne-usgs/padfix

Adding one more pixel of padding in reader function so that we're gua…