Changes on pages navigation and session

new/pom.xml

new/src/main/java/it/inaf/oats/ia2/tap/tsm/TSMPages.java

new/src/main/java/it/inaf/oats/ia2/tap/tsm/TSMServlet.java

.../java/it/inaf/oats/ia2/tap/tsm/datalayer/TapSchemaDL.java

...java/it/inaf/oats/ia2/tap/tsm/ejb/ApplicationManager.java

...it/inaf/oats/ia2/tap/tsm/ejb/ApplicationManagerLocal.java

...main/java/it/inaf/oats/ia2/tap/tsm/model/Credentials.java

...t/inaf/oats/ia2/tap/tsm/model/InsertCredentialsModel.java

.../it/inaf/oats/ia2/tap/tsm/model/SelectTapSchemaModel.java

.../it/inaf/oats/ia2/tap/tsm/pageutil/InsertCredentials.java

...java/it/inaf/oats/ia2/tap/tsm/rest/ApplicationConfig.java

...it/inaf/oats/ia2/tap/tsm/rest/EditTapSchemaPageModel.java

...it/inaf/oats/ia2/tap/tsm/rest/EditTapSchemaPageState.java

...java/it/inaf/oats/ia2/tap/tsm/rest/TapSchemaResource.java

new/src/main/webapp/WEB-INF/beans.xml

new/src/main/webapp/WEB-INF/web.xml

new/src/main/webapp/credentials.jsp

new/src/main/webapp/editTapSchema.jsp

new/src/main/webapp/index.jsp

new/src/main/webapp/js/edit-tapschema.js