Third-, fourth- and fifth-grade students at K.T. Murphy rallied their pep today to get pumped for this year&amp;#8217;s round of Conencticut Mastery Tests, which begin on Monday. The 45-minute long pep rally featured songs, chants, dances and skits by teachers and students, as well as pep talks from Mayor Michael Pavia and Superintendent Joshua Starr. [...]