some icons for filetypes have been added.

.../filetypes/application-vnd.oasis.opendocument.formula.png

...filetypes/application-vnd.oasis.opendocument.graphics.png

...types/application-vnd.oasis.opendocument.presentation.png

...etypes/application-vnd.oasis.opendocument.spreadsheet.png

...img/filetypes/application-vnd.oasis.opendocument.text.png

core/img/filetypes/application-x-7z-compressed.png

core/img/filetypes/application-x-bzip-compressed-tar.png

core/img/filetypes/application-x-bzip.png

core/img/filetypes/application-x-compressed-tar.png

core/img/filetypes/application-x-deb.png

core/img/filetypes/application-x-debian-package.png

core/img/filetypes/application-x-gzip.png

core/img/filetypes/application-x-lzma-compressed-tar.png

core/img/filetypes/application-x-rar.png

core/img/filetypes/application-x-rpm.png

core/img/filetypes/application-x-tar.png

core/img/filetypes/application-x-tarz.png

core/img/filetypes/application-zip.png

core/img/filetypes/readme-2.txt