EXP-170. Upgrade to use latest root-pom and kiji-framework.

This commit updates the pom to depend on root-pom 1.1.2 (the latest
release) and a kiji-framework (1.1.1-SNAPSHOT) that includes the
latest releases of KijiSchema (1.1.2) and KijiMR (1.0.2).

Reviewed by: robertchu