also print Individuals and zapsmall for prettier figures in print.specaccum

git-svn-id: svn+ssh://svn.r-forge.r-project.org/svnroot/vegan/pkg/vegan@2463 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
print if specaccum() was weighted

git-svn-id: svn+ssh://svn.r-forge.r-project.org/svnroot/vegan/pkg/vegan@2464 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
match method name before using, and weighted method = 'collector' returns effort

git-svn-id: svn+ssh://svn.r-forge.r-project.org/svnroot/vegan/pkg/vegan@2465 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
expand documenation of weights in specaccum

git-svn-id: svn+ssh://svn.r-forge.r-project.org/svnroot/vegan/pkg/vegan@2466 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
update examples for specaccum

git-svn-id: svn+ssh://svn.r-forge.r-project.org/svnroot/vegan/pkg/vegan@2467 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
tabasco cannot handle negative data

git-svn-id: svn+ssh://svn.r-forge.r-project.org/svnroot/vegan/pkg/vegan@2468 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
Merge branch 'r-forge-svn-local'