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
Removed wrong whitespaces
Cleanup ws_string_init()

Do early return, fix semantical blocks.

Pair-programmed-with: Manuel Johannes Messner <manuel.johannes.messner@hs-furtwangen.de>
Cleanup ws_string_set_from_str()

Pair-programmed-with: Manuel Johannes Messner <manuel.johannes.messner@hs-furtwangen.de>
Cleanup ws_string_cat()

- Remove unneccessary variables
- Revert return logic

Pair-programmed-with: Manuel Johannes Messner <manuel.johannes.messner@hs-furtwangen.de>
Minify ws_string_dupl()

Pair-programmed-with: Manuel Johannes Messner <manuel.johannes.messner@hs-furtwangen.de>
Move variable declaration in ws_string_cmp()

Pair-programmed-with: Manuel Johannes Messner <manuel.johannes.messner@hs-furtwangen.de>
Move variable declaration in ws_string_ncmp()

Pair-programmed-with: Manuel Johannes Messner <manuel.johannes.messner@hs-furtwangen.de>
Move variable declaration in ws_string_substr()

Pair-programmed-with: Manuel Johannes Messner <manuel.johannes.messner@hs-furtwangen.de>
Remove @todo from objects/object.h : was already done
Remove @todo from serialize/json/deserialzer.c : was implemented already
Remove dead statement (and @todo) from ws_value_union_reinit()