An Act amending the act of July 23, 1970 (P.L.563, No.195), known as the Public Employe Relations Act, in representation, further providing for election requests, consent to election, notice and pre-election hearings and for appropriateness of unit; in scope of bargaining, repealing provisions relating to first level supervisors; in collective bargaining impasse, further providing for commencement of mediation and for continuation of mediation and fact-finding panels; and repealing provisions relating to picketing.