Add buttons to results browser and files browser.

The button have the same functions as the pop-up menu.
Bug in Agent_ChooseXValues corrected (?,? produced two same numbers). Loading metadata from "metadata" file.
Back-up:
1) Agent_OptionsManager divided into two agents (only Random search supported so far)
2) Agent_AgentManager can create agents
3) metadata are loaded from "metadata" file
1) Agent_OptionsManager divided into two agents (only Random search supported so far)
2) Agent_AgentManager can create agents
3) metadata are loaded from "metadata" file

changes from previous commit - bug in RandomSearch corrected, AgentManager reads agent types from agent_types file
TODO: Manager should use AgentManager every time it creates an agent, adjust ChooseXValues agent
Merge with Klara
Agent ChooseXValues is working with the new Option Manager.
Agent_GUI_Java corrected.
Pre-merge commit
New merge with Klara
a commit
a commit
Commit before merge
Merge with Klara's no 4
Adaptation of ChooseXValues to general search
One minor change in ChooseXValues
Implementation of option search agents - Genetic Algorithm and Simulated Anneadling (not tested!)
Creation of common ancestor of GA and SA with useful functions.
Option files of GA and SA
getting options from RandomSearch corrected
Merge with Ondra's branch and changes in GUI.

Sorry for not making two commits instead of one...

Merge branch 'master' of git://github.com/kazio4am/pikater into development

Conflicts:
	init
	src/pikater/agents/computing/Agent_ComputingAgent.java