Merge pull request dtarb#109 from dtarb/Develop

Version 5.3.8

release version is set to 5.3.7

Increment version numbers to 5.3.5

Merge pull request dtarb#52 from dtarb/49-correct-bigtiff-support

49 correct bigtiff support

Version number 5.3.3

Merge pull request dtarb#43 from dtarb/42-add-GDAL-Python-module-to-i…

…nstaller

Setup script updated to install GDAL python module

modify code for connectdown

modify code for connectdown

Fix validation of text files and setting of default shapefile names.

Update readme