Correct a typo.
fix #7851, IntSet and negative integers
add openSUSE repositories
Merge pull request #7856 from rdmitry/master

add new openSUSE repositories
Use config=Dict() instead of {} for Pkg.generate. Fixes #7855
Configure git on Travis for Pkg.generate() tests
Merge pull request #7863 from i2000s/master

Updated the manual.