make initial version of linux-eclipse guide
setup steps for linux eclipse installation
add comment to the linux eclipse setup to tell beginners to try codeblocks setup
remove extra step to get .project files when using the tgz download of openframeworks
Merge pull request #134 from maiatoday/master

Setup instructions for Linux and Eclipse IDE
Update _documentation/utils/ofFile.markdown

typo
Merge pull request #135 from eranws/patch-2

Update _documentation/utils/ofFile.markdown
add note about casting the return pointer of ofGetAppPtr()
Merge pull request #136 from thiagohersan/fix-ofGetAppPtr

add note about casting the return pointer of ofGetAppPtr()