Fixes

...java/it/inaf/oats/ia2/tapschemamanager/api/DaoColumn.java

...in/java/it/inaf/oats/ia2/tapschemamanager/api/DaoKey.java

.../java/it/inaf/oats/ia2/tapschemamanager/api/DaoTable.java

.../it/inaf/oats/ia2/tapschemamanager/api/TapSchemaImpl.java

...t/java/it/inaf/oats/ia2/tapschemamanager/api/TestAll.java

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

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

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

...hemaManagerWebApp/src/main/webapp/resources/css/style.css

...agerWebApp/src/main/webapp/resources/js/edit-tapschema.js

...chemaManagerWebApp/src/main/webapp/tapSchemaEditing.xhtml