added vegan to suggest -> examples
added tax_agg function -> aggegate community data to specific level
fixed docs
Merge pull request #160 from EDiLD/fix_quick

another aggregation function
fixed typo
Merge pull request #161 from EDiLD/fix_quick

fixed typo
fixed docs
IUCN: docs and style
docs & style
docs & style
Merge pull request #162 from EDiLD/fix_quick

Mainly fixed documentation and coding sytle