Add translation_description to prepare for translation.

Clean up menu items.
- change "Record track" to "Record Track"
- change "Stop recording" to "Stop Recording"
- remove "Delete all tracks", "Please select the track to view",
  "Current track", and "Last segment".
- move "Elevation" to the stat label section.

scripts/i18n/.project

@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<projectDescription>
+	<name>i18n</name>
+	<comment></comment>
+	<projects>
+	</projects>
+	<buildSpec>
+		<buildCommand>
+			<name>org.python.pydev.PyDevBuilder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
+	</buildSpec>
+	<natures>
+		<nature>org.python.pydev.pythonNature</nature>
+	</natures>
+</projectDescription>