Add null safe math operations
treea7f0b307494b3dc53af767b6f834b281298ba03b
-rwxr-xr-x 59 .gitignore
-rwxr-xr-x 406 .travis.yml
drwxr-xr-x - AUTHORS
-rwxr-xr-x 7048 LICENSE
-rwxr-xr-x 991 Makefile
-rwxr-xr-x 2360 README.asciidoc
-rw-r--r-- 233 bnd.bnd
drwxr-xr-x - build
-rwxr-xr-x 4525 pom.xml
drwxr-xr-x - src