Update OGCE:file-manager portlet with new tacc classes

This update adds sorted view to the directory. JSP files and two java classes are modified: FileManagerConstants.java and FileManagerPortlet.java
The list of file updated is following.
portlets/comp-file-management/src/main/webapp/jsp/fileBrowser.jsp
portlets/comp-file-management/src/main/webapp/jsp/view.jsp
portlets/comp-file-management/src/main/webapp/css/fileManagement.css
portlets/comp-file-management/src/main/java/edu/tacc/gridport/portlets/interactive/FileManagementConstants.java
portlets/comp-file-management/src/main/java/edu/tacc/gridport/portlets/interactive/FileManagementPortlet.java
portlets/gp-common/src/main/webapp/jsp/fileBrowser.jsp - identical tofileBrowser.jsp above
portlets/gp-common/src/main/webapp/javascript/fileBrowser.js

* editted part is noted as "lukas edit"