Renamed plugins to a common naming style and moved two completed plugins from fgt to their final place

src/meshlabplugins/io_tri/io_tri.pro

@@ -1,11 +1,11 @@
 TEMPLATE      = lib
 CONFIG       += plugin
 INCLUDEPATH  += ../.. ../../../../sf ../../../../code/lib/glew/include 
-HEADERS       = tri_io.h \
+HEADERS       = io_tri.h \
 				
-SOURCES       = tri_io.cpp 
+SOURCES       = io_tri.cpp 
 				
-TARGET        = tri_io
+TARGET        = io_tri
 DESTDIR       = ../../meshlab/plugins
 
 # the following line is needed to avoid mismatch between 

src/meshlabplugins/io_u3d/io_u3d.pro

@@ -3,12 +3,12 @@ CONFIG       += plugin
 INCLUDEPATH  += ../.. ../../../../sf ../../../../code/lib/glew/include 
 
 FORMS         = ui/u3d_gui.ui 				
-HEADERS       = u3d_io.h \
+HEADERS       = io_u3d.h \
 				u3d_gui.h \
 				../../../../sf/wrap/io_trimesh/export_u3d.h
-SOURCES       = u3d_io.cpp \
+SOURCES       = io_u3d.cpp \
 				u3d_gui.cpp
-TARGET        = u3d_io
+TARGET        = io_u3d
 DESTDIR       = ../../meshlab/plugins
 CONFIG		+= debug_and_release
 

src/meshlabplugins/meshlabpluginsv12.pro

@@ -6,6 +6,7 @@ SUBDIRS       = meshfilter \
 				epoch_io \
 				io_u3d\
 				io_tri\
+				io_x3d \
 				meshrender \
 				cleanfilter \
 				filter_ao \ 
@@ -22,6 +23,7 @@ SUBDIRS       = meshfilter \
 				editmeasure\
 				editrgbtri\
 				editsegment\
+				edit_straightener \
 				../sampleplugins/sampleedit \
 				../sampleplugins/samplefilter \
 				../sampleplugins/samplefilterdoc \
@@ -34,10 +36,8 @@ SUBDIRS       = meshfilter \
 				../fgt/filter_dirt \
 				../fgt/edit_quality \
 				../fgt/edit_quality/filter_quality \
-				../fgt/edit_straightener \
 				../fgt/edit_texture\
-				../fgt/editpaint\
-				../fgt/io_x3d
+				../fgt/editpaint