Minor fixes: dialog_create_array.*  files:  clean code ( remove useless declarations and functions ). 
fix a few coverity warnings about not initialized members in ctors.

3D viewer: fix (the fix is not perfect) a minor issue in zone rendering: copper thickness was not good when the option 'Show Holes in Zones" was OFF, and "Show Copper Thickness" ON.
Fix a few coverity minor warnings.

Pcbnew: duplicate and create array: popup menus in legacy mode: remove these options for a few items which cannot be (safely)  duplicated (pads in board editor, and a few others )
Modedit, GAL mode: fix a crash when a duplicated area includes the ref or value fields.
Add missing bitmap for pad enumerate.
fix bad flag for Portuguese language.
Fix a few typo in messages.

Try to fix Bug #1431391 (Unable to edit pins in Schematic library editor). It happens on XFCE, but also on Unity. This fix works on Unity. (it is due to the fact the dialog is not raised, for an unknown reason, and this bug depend on the way Eeschema and Libedit are run).
Add Ctrl+E hotkey in eeschema to edit a component with Libedit (similar to pcbnew Ctrl+E hotkey)
As usual, fix a few minor coverity warnings

Moved "Place Target" and "Place Module" tools from DRAWING_TOOL to PCB_EDITOR_CONTROL (to avoid placing modules in the footprint editor).

Minot fixes: Minor coding style issues fix (tab -> spaces). Add missing GetClass to all classes derived from EDA_ITEM. Make debug method Show() only compiled in debug mode.

Move exact dialog: make all messages translatable. Fix minor issues (some can be Windows specific). Remove useless declarations. Fix coding style issues
Fix minor warnings from cppcheck.

bulk improvements for selection and edit tools (GAL) disambiguatin heuristics and smarter grid alignment