Fix DBF file writer so it preserves the value of all floating-point
numbers, including the "no-value" markers.
Correct gear-shifting criteria, additional tests.
Clean up shapefile DBF formatting code, preserve original format unless
data would be corrupted.
Enhanced tests.
Clean up test code.
Create README.md
Minor cleanup.
Merge remote-tracking branch 'origin/master'
Merge remote-tracking branch 'upstream/master'
Revert README and buffer allocation changes.
Improve and comment unit test.
Make exception more precise.
Merge remote-tracking branch 'upstream/master'
Unsynchronize.
Default to truncate (with logging) on field size overwrite.
Merge remote-tracking branch 'upstream/master'
Merge remote-tracking branch 'upstream/master'
Merge remote-tracking branch 'upstream/master'
Merge pull request #222 from rhayes-cida/master

Fix DBF writer so it does not truncate large-magnitude numbers.