Make Logger bootloader print meaningful warning when RubyGems is outdated.
Make Logger bootloader print meaningful warning when RubyGems is outdated.

wycats/merb,benburkert/merb-core,merb/merb,wycats/merb,merb/merb,wycats/merb,wycats/merb,benburkert/merb-core,merb/merb,wycats/merb