fix #2563 text fragment support

src/main/java/org/codelibs/fess/Constants.java

src/main/java/org/codelibs/fess/helper/ViewHelper.java

.../java/org/codelibs/fess/mylasta/direction/FessConfig.java

src/main/java/org/codelibs/fess/util/QueryResponseList.java

src/main/resources/fess_config.properties