Add (helper) function (without impl.) for moving a shell surface
Add command function for moving a shell surface
Merge pull request #426 from matthiasbeyer/add-shell_surface_pos_set_function

Add command function for shell surface to set position
Set function table

Someone forgot to actually _set_ the function table.
Merge pull request #437 from neithernut/fix-use_function_table

Set function table
Add documentation to ws_value_union_reinit()
Add missing memberof to documentation of ws_value_union_init_from_val()
Merge pull request #452 from neithernut/fix-value-union-documentation

Fix value union documentation
Silence pdflatex