Merge branch 'orditkplot': issue #10 move orditkplot from vegan

DESCRIPTION

@@ -1,6 +1,7 @@
 Package: vegan3d
-Title: Static and Dynamic 3D Plots for the 'vegan' Package
-Version: 1.2-0
+Title: Static and Dynamic 3D and Editable Interactive Plots for the
+    'vegan' Package
+Version: 2.0-0
 Authors@R: c(person("Jari", "Oksanen", role=c("aut","cre"),
 	     email="jhoksane@gmail.com"),
              person("Roeland", "Kindt", role="aut"),
@@ -9,6 +10,7 @@ Authors@R: c(person("Jari", "Oksanen", role=c("aut","cre"),
              person("Duncan", "Murdoch", role="ctb", 
                     email="murdoch.duncan@gmail.com"))
 Depends: R (>= 3.2.0), vegan (>= 2.3-0)
+Suggests: tcltk
 Imports: cluster, rgl, scatterplot3d (>= 0.3-40)
 Description: Static and dynamic 3D plots to be used with ordination
     results and in diversity analysis, especially with the vegan package.

NAMESPACE

@@ -7,15 +7,17 @@ import(scatterplot3d)
 ## ellipsoid hulls
 importFrom(cluster, ellipsoidhull)
 ## explicit imports for base R functions
-importFrom(grDevices, rainbow, col2rgb, rgb)
-importFrom(graphics, arrows, points, segments, text)
+importFrom(grDevices, rainbow, col2rgb, rgb, bmp, check.options, dev.off,
+           jpeg, palette, pdf, png, postscript, svg, tiff, xfig)
+importFrom(graphics, arrows, par, points, segments, text)
 importFrom(stats, weighted.mean, weights, as.hclust, reorder, cov.wt, qchisq)
 
 ## export what we got
 export(orditree3d,
        ordiplot3d,
        ordirgl,
        ordirgltree,
+       orditkplot,
        orglcluster,
        orglellipse,
        orglpoints,
@@ -27,3 +29,7 @@ export(orditree3d,
        rgl.renyiaccum)
 ## S3 methods
 S3method(scores, ordiplot3d)
+S3method(plot, orditkplot)
+S3method(points, orditkplot)
+S3method(scores, orditkplot)
+S3method(text, orditkplot)