additionaly return file system type in ".run.df" agent (bnc#896176)

- 3.1.116
Merge pull request #237 from yast/df_filesystem_type

Additionaly return file system type in ".run.df" agent (bnc#896176)
deprecate maintainer file
adapt Rakefile to submit to correct build service project in maintenance branch SLE-12-GA
Revert "adapt Rakefile to submit to correct build service project in maintenance branch SLE-12-GA"

This reverts commit e1fbd6c468c80abec7ff2ac59faf436986c753b6.