EXP-170. Update root-pom and kiji-framework dependencies.

This commit modifies the project pom to depend on the latest released
root-pom (1.1.2) and a new version of kiji-framework (1.1.1-SNAPSHOT)
that includes updated dependencies for KijiSchema (1.1.2) and KijiMR
(1.0.2).

Reviewed by: robertchu