REMixed version 1.1.0

• Add the possibility to use regressor as initial value.
• Change default number of quadrature points use in gh.LL() and improve precision on log-likelihood computation from gh.LL() function.
• Add warnings for recalibration fails.
• Add theme_bw() to most plot functions.
• Add Vignettes.

REMixed version 0.1.0

First release of REMixed package.