Removed the requirement of CPF's field input

CPF is no longer needed to professors profile.
Signed-off-by: Bruno Nocera Zanette <brunonzanette@gmail.com>

src/main/webapp/WEB-INF/views/professors/confirmation.jspx

@@ -43,7 +43,7 @@
 		<hr/>
         <b>Outros</b>
         <p/>
-        <field:input field="cpf" id="c_br_ufpr_c3sl_sapos_models_people_Professor_cpf" cpfvalidator="true" required="true" validationRegex="\\d{11}" validationMessageCode="field_invalid_cpf" z="user-managed"/>
+        <field:input field="cpf" id="c_br_ufpr_c3sl_sapos_models_people_Professor_cpf" cpfvalidator="true" required="false" validationRegex="\\d{11}" validationMessageCode="field_invalid_cpf" z="user-managed"/>
         <field:input field="rg" id="c_br_ufpr_c3sl_sapos_models_people_Professor_rg" z="user-managed"/>
         <field:input field="emitterRg" id="c_br_ufpr_c3sl_sapos_models_people_Professor_emitterRg" z="user-managed"/>
         <field:select field="bank" id="c_br_ufpr_c3sl_sapos_models_people_Professor_bank" itemValue="id" items="${banks}" path="/banks" z="user-managed"/>

src/main/webapp/WEB-INF/views/professors/create.jspx

@@ -38,7 +38,7 @@
 		<hr/>
         <b>Outros</b>
         <p/>
-        <field:input field="cpf" id="c_br_ufpr_c3sl_sapos_models_people_Professor_cpf" cpfvalidator="true" required="true" validationRegex="\\d{11}" validationMessageCode="field_invalid_cpf" z="user-managed"/>
+        <field:input field="cpf" id="c_br_ufpr_c3sl_sapos_models_people_Professor_cpf" cpfvalidator="true" required="false" validationRegex="\\d{11}" validationMessageCode="field_invalid_cpf" z="user-managed"/>
         <field:input field="rg" id="c_br_ufpr_c3sl_sapos_models_people_Professor_rg" z="user-managed"/>
         <field:input field="emitterRg" id="c_br_ufpr_c3sl_sapos_models_people_Professor_emitterRg" z="user-managed"/>
         <field:select field="bank" id="c_br_ufpr_c3sl_sapos_models_people_Professor_bank" itemValue="id" items="${banks}" path="/banks" z="user-managed"/>

src/main/webapp/WEB-INF/views/professors/update.jspx

@@ -35,7 +35,7 @@
 		<hr/>
         <b>Outros</b>
         <p/>
-        <field:input field="cpf" id="c_br_ufpr_c3sl_sapos_models_people_Professor_cpf" cpfvalidator="true" required="true" validationRegex="\\d{11}" validationMessageCode="field_invalid_cpf" z="user-managed"/>
+        <field:input field="cpf" id="c_br_ufpr_c3sl_sapos_models_people_Professor_cpf" cpfvalidator="true" required="false" validationRegex="\\d{11}" validationMessageCode="field_invalid_cpf" z="user-managed"/>
         <field:input field="rg" id="c_br_ufpr_c3sl_sapos_models_people_Professor_rg" z="user-managed"/>
         <field:input field="emitterRg" id="c_br_ufpr_c3sl_sapos_models_people_Professor_emitterRg" z="user-managed"/>
         <field:select field="bank" id="c_br_ufpr_c3sl_sapos_models_people_Professor_bank" itemValue="id" items="${banks}" path="/banks" z="user-managed"/>