Regenerated gemspec for version 1.6.15
Regenerated gemspec for version 1.6.15

shtzr840329/db-charmer,shtzr840329/db-charmer,fiverr/db_charmer_with_sinatra,kovyrin/db-charmer,sandboxrem/db-charmer,kovyrin/db-charmer,shtzr840329/db-charmer,fiverr/db_charmer_with_sinatra