v0.5 - REMargins

New Features

• subBoot now works with glmerMod objects as well
• reMargins a new function that allows the user to marginalize the prediction over breaks in the
  distribution of random effect distributions, see ?reMargins and the new reMargins vignette (closes #73)

Bug fixes

• Fixed an issue where known convergence errors were issuing warnings and causing the test suite
  to not work
• Fixed an issue where models with a random slope, no intercept, and no fixed term were unable
  to be predicted (#101)
• Fixed an issue with shinyMer not working with substantive fixed effects (#93)