**v.0.4.4**

v.0.4.4

• several updates to make function faster.
• stackr_imputations_module no longer imputes globally after imputations
  by populations. Instead, use common.markers or not to test impacts.
• bug fix with ref_alt_alleles that was not working properly inside
  the imputation module.
• snp_ld is not a separate module available for users. Check documentation.
• missing_visualization now show the proportion of variance with plot axis text.