only copy known directories
create blank file to prevent R compiler warnings for documentation
copy gfortran libs to R libs folder to simplify library resolutions
export the BUILD_DIR variable so that `init.r` can pick it up for locally sourced packages
want R outputs while executing `init.r`
exporting BUILD_DIR didn't work, so set the working directory explicitly in the R code
updated readme
Fix the link to README on building binaries
correction to links in README
Merge pull request #10 from mattonrails/patch-1

Fix the link to README on building binaries
updated init.r as per suggestion by @chahu
updated init.r as per suggestion by @chahu
Merge pull request #12 from virtualstaticvoid/development

Incorporate enhancements from development branch
added license
updated build script for png/cairo support
need cairo 1.12 for pango
updated compile script for new image on S3
updated versions of dependencies needed for pango
removed clean up code for now
probably don't need trailing slash