Added .gitignore and README

# Ignore all

*

# Unignore all with extensions

!*.*

# Unignore all dirs

!*/

!Makefile

*.cub

*.o

*.so

*.so.*

*.a

moc_*

*.pb.*

*.lbl

*.img

!TestPreferences

print.prt

object_script.*.Release

object_script.*.Debug

*_plugin_import.cpp

*.moc

ui_*.h

*/3rdParty/*

!*/3rdParty/Makefile

*/inc/*

*/bin/*

*/lib/*

*/tsts/*/input/*

*/tsts/*/truth/*

*/tsts/*/output/*

# ISIS3

Integrated Software for Imagers and Spectrometers ISIS3 public release site