Version 0.1.0

This release adds a couple new features and a bunch of improvements to existing ones.

New features:

• perform_permanova() does permutational analysis of variance using package called PERMANOVA
• perform_pairwise_t_test() has new parameter is_paired which allows paired version of pairwise t-tests
• clean_stats_results() can be used to rename and remove columns from statistics results
• Error messages will be logged to a file after init_log()
• Merging MetaboSet objects will now create dummy (negative incrementing) injection order if injection order differs between modes
• Sample identification column can now be passed to read_from_excel()

Other changes:

• mz_rt_plot() plots can now be filtered by p-values and low-quality features can be dropped from a MetaboSet object
• volcano_plot() plots can be labeled
• cohens_d() is now able to handle multiple comparisons at once
• read_from_excel() will now check that mass-to-charge and retention time values are reasonable, limits can be adjusted
• Column names in statistics results, excluding linear models, follow group + comparison + value style

Bug fixes:

• Simple imputation fails when only one feature satisfies NA limit
• ... arguments will be passed forward in perform_correlation_tests()