Merge pull request #9 from csmoore/master

Adds Range Cards Toolbox (Issue #5) - Ready for Test
Path Slope Tests
Scratch Database issue
Added Path Slope Tests
Code Review Changes
Merge pull request #10 from ACueva/master

Issue #4 - adds  Path Slope Toolbox and Tools
Update ScreenShot.jpg

Update the screen shot to something better
Changes to README to clarify steps

Moved requirements above instructions, etc
Auto Version Detection

Auto Version Detection
Merge branch 'master' of https://github.com/Esri/defense-and-intel-analysis-toolbox
Version Detection changes

Added error message if it could not find ArcGIS installation.
Minor changes: check folders exist, renamed props