Revert "Fixes issue #25"

This reverts commit 4e1d5edb54047150362d75adbd842aa61d60a010.
yet another attempt to fix issue #25
Update .travis.yml

add charlock_holmes gem dependency
Update .travis.yml

update homebrew before install
add libicu-dev
add yet another dependency for charlock_holmes

only for ruby 1.8.7
try to fix missing lmagic extension
Update .travis.yml
Update .travis.yml