add some improvements

[codecov[bot]]

Codecov Report

Merging #303 (826c833) into master (8c542ea) will decrease coverage by 0.01%. The diff coverage is 94.11%.

@@            Coverage Diff             @@
##           master     #303      +/-   ##
==========================================
- Coverage   93.06%   93.04%   -0.02%     
==========================================
  Files          35       35              
  Lines        3286     3293       +7     
==========================================
+ Hits         3058     3064       +6     
- Misses        228      229       +1     

Impacted Files	Coverage Δ
src/filters/sparse_univariate_kalman_filter.jl	62.09% <0.00%> (ø)
src/prints.jl	94.44% <94.11%> (-1.86%)	:arrow_down:
src/cross_validation.jl	100.00% <100.00%> (ø)
src/filters/multivariate_kalman_filter.jl	75.83% <100.00%> (ø)
src/filters/univariate_kalman_filter.jl	98.07% <100.00%> (ø)
src/fit.jl	97.80% <100.00%> (+0.18%)	:arrow_up:
src/models/sarima.jl	96.17% <100.00%> (ø)

---

Continue to review full report at Codecov.

Legend - Click here to learn more Δ = absolute <relative> (impact), ø = not affected, ? = missing data Powered by Codecov. Last update 8c542ea...826c833. Read the comment docs.

[guilhermebodin]

I agreed with the comments. Right now I prefer to release a 0.6

[guilhermebodin]

This should close #193