fixed: plug-ins manifest
fixed: newDir plug-in does not warn about existing file/directory
typos
fixed: newDir plug-in does not check new path validity
fixed: move plug-in does not warn about empty selection
fixed: show plug-in throws exception when trying to open empty text file
fixed: zip plug-in does not fire refresh event
fixed: unzip plug-in does not send refresh event
pre merge cleanup
pre merge cleanup
pre-merge cleanup
Merge branch 'lubos' into new_main

Conflicts:
	workspace/Common/src/cz/zcu/kiv/kc/plugin/AbstractPlugin.java
	workspace/Common/src/cz/zcu/kiv/kc/plugin/I18N.java
	workspace/Core/src/core/Activator.java
	workspace/Plugins/src/cz/zcu/kiv/kc/plugin/createDir/CreateDirPlugin.java
	workspace/Plugins/src/cz/zcu/kiv/kc/plugin/delete/DeleteFilePlugin.java
	workspace/Plugins/src/cz/zcu/kiv/kc/plugin/show/ShowFilePlugin.java
	workspace/Plugins/src/cz/zcu/kiv/kc/plugin/unzip/UnzipFilePlugin.java
	workspace/Plugins/src/cz/zcu/kiv/kc/plugin/zip/ZipFilePlugin.java