It´s modified to use RSpect 3.0.0 version (last) and two syntax ( ":should" & ":expect" ) inside our test

[ferlom]

Use RSpec 3.0.0 version and more...

It´s modified to disable warnings about old ":should" syntax in RSpect 3.0.0 version and

to let´s us use two syntaxs ( ":should" & ":expect" ) inside our tests