Navigation improvements, refactoring and bugfix

TapSchemaManager/pom.xml

.../inaf/oats/ia2/tapschemamanager/businesslayer/Column.java

.../inaf/oats/ia2/tapschemamanager/businesslayer/Schema.java

...t/inaf/oats/ia2/tapschemamanager/businesslayer/Table.java

...af/oats/ia2/tapschemamanager/businesslayer/TapSchema.java

.../oats/ia2/tapschemamanager/webapp/ApplicationManager.java

.../ia2/tapschemamanager/webapp/ApplicationManagerLocal.java

...naf/oats/ia2/tapschemamanager/webapp/CredentialsBean.java

...s/ia2/tapschemamanager/webapp/EditTapSchemaPageModel.java

...s/ia2/tapschemamanager/webapp/InsertCredentialsModel.java

...oats/ia2/tapschemamanager/webapp/SchemaSelectionBean.java

...naf/oats/ia2/tapschemamanager/webapp/SearchUCDDialog.java

...ats/ia2/tapschemamanager/webapp/SelectTapSchemaModel.java

...va/it/inaf/oats/ia2/tapschemamanager/webapp/TSMPages.java

.../it/inaf/oats/ia2/tapschemamanager/webapp/TSMServlet.java

...ats/ia2/tapschemamanager/webapp/TapSchemaEditingBean.java

...f/oats/ia2/tapschemamanager/webapp/TapSchemaResource.java

TapSchemaManager/src/main/webapp/WEB-INF/tags/basepage.tag

...hemaManager/src/main/webapp/WEB-INF/tags/editcheckbox.tag

TapSchemaManager/src/main/webapp/WEB-INF/tags/edittext.tag