version-constrain the mime-types gem
version-constrain the mime-types gem

Travis is getting this error with Rails 4.2 on Ruby 1.9:

>Gem::InstallError: mime-types-data requires Ruby version >= 2.0.

I wish Bundler could automatically find an older version instead of us
having to specify it...

gogovan/activeadmin,quikly/active_admin,gogovan/activeadmin,mrjman/activeadmin,whatcould/active_admin,senid231/activeadmin,varyonic/activeadmin,mrjman/activeadmin,mauriciopasquier/active_admin,varyonic/activeadmin,waymondo/active_admin,vraravam/activeadmin,bolshakov/activeadmin,mrjman/activeadmin,cmunozgar/activeadmin,mauriciopasquier/active_admin,siutin/activeadmin,quikly/active_admin,deivid-rodriguez/activeadmin,chdem/activeadmin,siutin/activeadmin,javierjulio/activeadmin,deivid-rodriguez/activeadmin,SoftSwiss/active_admin,halilim/activeadmin,quikly/active_admin,wspurgin/activeadmin,whatcould/active_admin,cmunozgar/activeadmin,varyonic/activeadmin,vytenis-s/activeadmin,Ibotta/activeadmin,javierjulio/activeadmin,deivid-rodriguez/activeadmin,vraravam/activeadmin,halilim/activeadmin,mauriciopasquier/active_admin,javierjulio/activeadmin,chdem/activeadmin,vytenis-s/activeadmin,wspurgin/activeadmin,mateusg/active_admin,waymondo/active_admin,mateusg/active_admin,halilim/activeadmin,bolshakov/activeadmin,chdem/activeadmin,cmunozgar/activeadmin,activeadmin/activeadmin,Ibotta/activeadmin,maysam/activeadmin,bolshakov/activeadmin,SoftSwiss/active_admin,senid231/activeadmin,activeadmin/activeadmin,waymondo/active_admin,Ibotta/activeadmin,mateusg/active_admin,vraravam/activeadmin,siutin/activeadmin,maysam/activeadmin,wspurgin/activeadmin,maysam/activeadmin,whatcould/active_admin,gogovan/activeadmin,senid231/activeadmin,SoftSwiss/active_admin,activeadmin/activeadmin,vytenis-s/activeadmin