oraclejdk7: add missing dependencies
Fixes
Workaround for relocation error

This works around "java: relocation error: java: symbol , version GLIBC_2.2.5 not defined in file libc.so.6 with link time reference"
Merge branch 'update-java7' of git://github.com/bennofs/nixpkgs

oraclejdk7: add missing dependencies