pcbnew: "Postscript A4" radiobutton now restored in "Plot" dialog box (if it had been selected previously)
Also fine-tuned spaces within strings specified within share/infospgm.cpp

Changes to pcbnew/gendrill.cpp which primarily enhance Drill Report files, but which also result in Drill Map files listing the diameters of each drill in the selected drill unit first (and then in the other drill unit).

Little corrections in menu strings (interface standardization and typos correction).

Added some russian translated strings. Little corrections in menu strings (interface standardization).

	added buttons for insert and replace module in the module editor 
with a new bitmap.  restored JP's original functionality for the insert 
button, replace linked to the new code. 

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