merging trunk changes with IIS-CDH-5.3.0 branch
#1197 introducing job.properties changes aligning paths to rumcajs cluster HDFS structure
creating IIS-CDH-5.3.0 branch
#1026 setting threshold_num_of_vector_elems_length to 2 which proves to be solution for mentioned problem
#1026 introducing threshold_num_of_vector_elems_length parameter support which eliminate all documents with terms verctor shorter than specified threshold
#768 fix: introducing missing mainDirectory parameter set to ${wf:appPath()}/coansys
updating job.properties