Added 'Load Chainsaw configuration' menu item to file menu, reworded file-open menu items (file-open currently supports only log4j or util.logging XML-formatted log files). Fixed graphical glitches noticed when running in Linux with default look and feel (toolbar & dialog button text, layout tweaks)
logging/chainsaw/trunk/src/main/java/org/apache/log4j/chainsaw/AbstractPreferencePanel.java