rewrite ofToDataPath and associated functions to use Poco::Path
default working directory is now set at app start rather than in folder operations
cleaned ofSetWorkingDirectoryToDefault
resolve deviations in cwd. keep relative paths
fixed issue when input path to ofToDataPath already includes data path
fixed lame bug with absolute paths
updated comments of ofToDataPath
updated comments of ofToDataPath
fixed possible issue with blank datapaths when stripping trailing slash in ofToDataPath
merged changes to ofToDataPath using poco into current develop branch
use static pointer rather than reference to avoid issues when accessing datapath on exit
static on defaultWorkingDirectory
Merge pull request #1523 from elliotwoods/bugfix-ofToDataPath-usingPoco

Bugfix ofToDataPath using Poco::Path