Work in progress with sign detection and booleans
Merge branch 'master' of github.com:rostgaard/02242

Conflicts:
	analysis_tool/src/syntaxtree/condition/Condition.java
	analysis_tool/src/syntaxtree/condition/ExpressionOperationCondition.java
	analysis_tool/src/syntaxtree/condition/OperationCondition.java
	analysis_tool/src/syntaxtree/statement/Assignment.java
	analysis_tool/src/syntaxtree/statement/If.java
	analysis_tool/src/syntaxtree/statement/Statement.java
	analysis_tool/src/syntaxtree/statement/While.java
	analysis_tool/src/unused/WorklistAlgorithm.java