IsLower.java - Returns if the data contains lower letters only
GetNumberAndSign.java - Makes an arithmetic expression with the data and with the two given attributes: number and a sign and returns the boolean value of the expression
Merge branch 'master' of https://github.com/dykan/APUIengine

Conflicts:
	.classpath
Adding them above predicats:
* IsEqualToNumber.java - Returns if the given attribute number is equal to the data
* IsGreaterThan.java - Returns if the given attribute number is greater than the data
* IsSmallerThan.java - Returns if the given attribute number is smaller than the data
Merge branch 'master' of https://github.com/dykan/APUIengine
ArithmethicExpression.java - The user enters a number and a sign. We create an arithmetic expression with the two given attributes and return the boolean value of the expression.
Merge branch 'master' of https://github.com/dykan/APUIengine
Adding more abilities
Adding the option to check if the given string equals to the data
Merge branch 'master' of https://github.com/dykan/APUIengine

Conflicts:
	src/examples/IsUpper.java