added the possibility to pass the name (allowing wildcards) of the tablespace as parameter to filter the list of tablespaces in the tbs_info.sql script
moved crsstat to the rac_scripts repo
improved some scripts and added 2 new scripts

overallocated_df.sql
  shows which datafiles have much allocated space, but relative little used space.
  output includes the high water mark of the datafile

top_10_swap_users.sh
  shows the top 10 processes ordered by swap space usage
  quick and dirty oneliner, still needs to be verified that swap usage is always reported in KB units

db_size2.sql
  now takes the tablespace name as optional parameter to filter on
  normal sql wildcards can be used

list_users.sql
  rewritten to work directly on the user$ and related $ views.
  this allowed to list the encrypted password again in the output
  also added some additional columns in the output

tblspace_growth_per_day.sql
  increased column widths