Fix Linux desktop mime definitions to match FreeDesktop specification. (fixes lp:746710)

resources/linux/mime/applications/bitmap2component.desktop

-
 [Desktop Entry]
-Categories=Development;Electronics
-Comment=Design a printed circuit board
+Categories=Development;Electronics;
+Comment=Create a component from a bitmap for use with KiCad
 Exec=bitmap2component
 GenericName=EDA Suite
 Icon=bitmap2component
 MimeType=application/x-bitmap2component-project;
-Name=bitmap2component
+Name=Bitmap to Component Converter
 Type=Application
-Name[en_US]=bitmap2component
+Name[en_US]=Bitmap to Component Converter

resources/linux/mime/applications/cvpcb.desktop

-
 [Desktop Entry]
-Categories=Development;Electronics
-Comment=Design a printed circuit board
+Categories=Development;Electronics;
+Comment=Assign footprints to symbols (part of KiCad)
 Exec=cvpcb
 GenericName=EDA Suite
 Icon=cvpcb
 MimeType=application/x-cvpcb-project;
-Name=cvpcb
+Name=CvPcb
 Type=Application
-Name[en_US]=cvpcb
+Name[en_US]=CvPcb

resources/linux/mime/applications/eeschema.desktop

 [Desktop Entry]
-Categories=Development;Electronics
+Categories=Development;Electronics;
 Comment=Design an electronic schematic
 Comment[fr]=Dessiner des schémas électroniques
 Exec=eeschema %f

resources/linux/mime/applications/gerbview.desktop

-
 [Desktop Entry]
-Categories=Development;Electronics
-Comment=Design a printed circuit board
+Categories=Development;Electronics;
+Comment=View gerber files
 Exec=gerbview
 GenericName=EDA Suite
 Icon=gerbview
 MimeType=application/x-gerbview-project;
-Name=gerbview
+Name=GerbView
 Type=Application
-Name[en_US]=gerbview
+Name[en_US]=GerbView

resources/linux/mime/applications/kicad.desktop

 [Desktop Entry]
-Categories=Development;Electronics
+Categories=Development;Electronics;
 Comment=Design a printed circuit board
 Comment[fr]=Concevoir un circuit imprimé
 Exec=kicad %f

resources/linux/mime/applications/pcbcalculator.desktop

-
 [Desktop Entry]
-Categories=Development;Electronics
-Comment=Design a printed circuit board
+Categories=Development;Electronics;
+Comment=Calculator for various electronics related computations
 Exec=pcb_calculator
 GenericName=EDA Suite
 Icon=pcbcalculator
 MimeType=application/x-pcbcalculator-project;
-Name=pcbcalculator
+Name=Pcb Calculator
 Type=Application
-Name[en_US]=pcbcalculator
+Name[en_US]=Pcb Calculator

resources/linux/mime/applications/pcbnew.desktop

-
 [Desktop Entry]
-Categories=Development;Electronics
-Comment=Design a printed circuit board
+Categories=Development;Electronics;
+Comment=Layout a printed circuit board
 Exec=pcbnew %f
 GenericName=EDA Suite
 Icon=pcbnew
 MimeType=application/x-pcbnew-pcb;
-Name=pcbnew
+Name=Pcbnew
 Type=Application
-Name[en_US]=pcbnew
+Name[en_US]=Pcbnew