fixing bug: check whether project is nil when setting the project.id in sharing params. cause: nil.id=4
fixing bug: check whether project is nil when setting the project.id in sharing params.
cause: nil.id=4

HITS-SDBV/seek,Virtual-Liver-Network/seek,kjgarza/frame_experiment,Virtual-Liver-Network/seek,SynthSys/seek,HITS-SDBV/nmtrypi-seek,kjgarza/frame_experiment,kjgarza/frame_experiment,Virtual-Liver-Network/seek,HITS-SDBV/seek,aina1205/nmtrypi-seek,kjgarza/frame_experiment,HITS-SDBV/seek,Virtual-Liver-Network/seek,HITS-SDBV/nmtrypi-seek,HITS-SDBV/nmtrypi-seek,SynthSys/seek,aina1205/nmtrypi-seek,HITS-SDBV/seek,aina1205/nmtrypi-seek,HITS-SDBV/nmtrypi-seek,aina1205/nmtrypi-seek,stuzart/seek,SynthSys/seek,SynthSys/seek,stuzart/seek,stuzart/seek