Adds new tasks to makefile

o `pngnize` allows to turn all user dynamic PDF images into PNG images
o `installtikzdev` fetches the sources of the tikzdevice and installs
   the R package which will be used then for nicer graphics
Puts float control prams in place

o These can be used to fine tune the float behavior
Updates the readme file
Fixes function to plot distribution maps

o moves the function to latest rgbif syntax
Adds latest pdf
Adds the new files to example and temp
Add a Bitdeli badge to README
Merge pull request #58 from bitdeli-chef/master

Add a Bitdeli Badge to README
Updates to the makefile and the distribution map

o Remove text files from the root directory
o Updates the rgbif wrapper so it is working again
Merge branch 'master' of github.com:cpfaff/Open-Science-Paper
Merge branch 'master' into v0.9.2

Conflicts:
	open_science_paper.pdf
	usr/subdocuments/chapters/osp_material_methods_section.Rnw
	usr/subdocuments/options/osp_global_r_options.Rnw
Resolved:
	Using the files from master