Removed several lines of text where Bronann was mainly saying 'Ok'.

Also changed a small word in the French translation since the intro
is now complete.
Forest NE: Replace tabs with spaces and added somewhat missing trees.
Forest NE: Changed to tabs and started to fill it with missing trees.
Quest Log as refered to in #10 is added!

The total changes in this push:

+ Added Quest view in menu
+ Added scrolling of quests and viewing the description
+ Quets can be added based on user-preference directly from LUA code /
logic thanks to an AddQuest lua binding
+ Quests will grey-out when completed, and have a "!" on the left if you
have not read them yet
+ dat/config/quests.lua holds the quests. I have added a couple sample and
some "test" quests there and left them on purpose. You are welcome to add
/ change / destroy as you please, but i wanted there to be a sample in the
beginning
+ added a "Get Barley" quest and "Get Pen" quest as samples into the the
game

A Couple miscelaneous additions:
+ Added "help" information for players when they navigate the menu

A bug fix:
- A bug where selecting Items when there was no inventory has been fixed.
Fixed the few actual quests set so far.

Note for later: Make the quests translatable, and reload their
translations when changing the language.
quick bug fix for when a title isnt found
Made the quests log entries translatable.

- I move the Translate call from the engine to around the actual strings
to permit the cmake script to recognize the new strings to add to the pot
file.

- I also made the quests.lua scripts be reloaded when changing the language
to permit reloading the strings into the new language when needed.
To achieve that, I move the quests.lua script loading to the global script
loading where it finally belongs more.
Made the new menu bottom sentences translatable.
Update the translation catalog + fr translation update.
Added a CMake option to compile against the system luabind headers (Linux only)
Added the new dialogues easing game start siggested by qubodup.

Also removed the hidden passage blocker.
POT update + FR translation update.
Fixed the tree shorcut being blocked + the dialogue camera stuttering
in a cheap way.