Merge pull request #165 from MikaelMayer/incremental

src/main/scala/leon/evaluators/AbstractEvaluator.scala

src/main/scala/leon/evaluators/ContextualEvaluator.scala

src/main/scala/leon/evaluators/RecursiveEvaluator.scala

src/main/scala/leon/purescala/Constructors.scala

src/main/scala/leon/purescala/DefOps.scala

src/main/scala/leon/purescala/ExprOps.scala

src/main/scala/leon/purescala/ScopeSimplifier.scala

src/main/scala/leon/purescala/SelfPrettyPrinter.scala

src/main/scala/leon/synthesis/ExamplesFinder.scala

src/main/scala/leon/synthesis/Solution.scala

...n/scala/leon/synthesis/disambiguation/ExamplesAdder.scala

...scala/leon/synthesis/disambiguation/QuestionBuilder.scala

src/main/scala/leon/synthesis/rules/StringRender.scala

src/main/scala/leon/verification/VerificationCondition.scala

src/main/scala/leon/verification/VerificationReport.scala

src/test/scala/leon/integration/purescala/ExprOpsSuite.scala

...st/scala/leon/integration/solvers/StringRenderSuite.scala

testcases/stringrender/CalendarRender.scala

testcases/stringrender/CustomRender.scala

testcases/stringrender/JsonRender.scala