Allow TravisCI failures on jruby and rbx 1.9 mode
Allow TravisCI failures on jruby and rbx 1.9 mode

JRuby 1.6 ruby 1.9 mode has a bug with fractional second
handling that I've already worked around in one place, and
don't feel like fixing in the spec.  rbx 1.9 mode has a
bug in Date#strptime.

knut2/sequel,yazshel/sequel,nicohvi/sequel,uhoh-itsmaciek/sequel,yazshel/sequel,t-morgan/sequel,t-morgan/sequel,dennis-d/custom_sequel,seeARMS/sequel,freshpay/sequel,seeARMS/sequel,beni55/sequel,Marketcircle/sequel,reubano/sequel,nicohvi/sequel,pfarrell/sequel,offshore-safety/sequel,uhoh-itsmaciek/sequel,chef/sequel,mpalmer/sequel,nju520/sequel,offshore-safety/sequel,gferguson-gd/sequel,freshpay/sequel,gferguson-gd/sequel,bigfix/sequel,knut2/sequel,mpalmer/sequel,davidbegin/sequel,nju520/sequel,dennis-d/custom_sequel,beni55/sequel,offshore-safety/sequel,reubano/sequel,davidbegin/sequel,pfarrell/sequel