Some fixes

* make qt configuration in CMake more flexible
* move creating of symlinks on windows from post build event to cmake
* create symlinks for test data in cmake on windows
* switch to 7zip for extraction python indexer
* make results of sourcegrouptests case insensitive

bin/test/data/SourceGroupTestSuite/cxx_c_empty/expected_output/output_windows.txt

@@ -1,4 +1,4 @@
-SourceFilePath: "src/Test.c"
+SourceFilePath: "src/test.c"
 	IndexedPath: "src"
 	CompilerFlag: "--target=test_arch-test_vendor-test_sys-test_abi"
 	CompilerFlag: "-std=c11"
@@ -15,5 +15,5 @@ SourceFilePath: "src/Test.c"
 	CompilerFlag: "-iframework"
 	CompilerFlag: "test/framework/search/path"
 	CompilerFlag: "-local-flag"
-	CompilerFlag: "src/Test.c"
+	CompilerFlag: "src/test.c"
 	ExcludeFilter: "**/excluded/**"

bin/test/data/SourceGroupTestSuite/cxx_cdb/expected_output/output_windows.txt

@@ -1,5 +1,5 @@
-SourceFilePath: "src/Test.cpp"
-	IndexedPath: "src/Test.cpp"
+SourceFilePath: "src/test.cpp"
+	IndexedPath: "src/test.cpp"
 	IndexedPath: "test/indexed/header/path"
 	CompilerFlag: "clang-tool"
 	CompilerFlag: "-fms-extensions"

bin/test/data/SourceGroupTestSuite/cxx_codeblocks/expected_output/output_windows.txt

@@ -1,5 +1,5 @@
-SourceFilePath: "src/Test.cpp"
-	IndexedPath: "src/Test.cpp"
+SourceFilePath: "src/test.cpp"
+	IndexedPath: "src/test.cpp"
 	IndexedPath: "test/indexed/header/path"
 	CompilerFlag: "-isystem"
 	CompilerFlag: "data/cxx/include/"
@@ -18,5 +18,5 @@ SourceFilePath: "src/Test.cpp"
 	CompilerFlag: "test/framework/search/path"
 	CompilerFlag: "-local-flag"
 	CompilerFlag: "-std=c++11"
-	CompilerFlag: "src/Test.cpp"
+	CompilerFlag: "src/test.cpp"
 	ExcludeFilter: "**/excluded/**"

bin/test/data/SourceGroupTestSuite/cxx_cpp_empty/expected_output/output_windows.txt

@@ -1,4 +1,4 @@
-SourceFilePath: "src/Test.cpp"
+SourceFilePath: "src/test.cpp"
 	IndexedPath: "src"
 	CompilerFlag: "--target=test_arch-test_vendor-test_sys-test_abi"
 	CompilerFlag: "-std=c++11"
@@ -17,5 +17,5 @@ SourceFilePath: "src/Test.cpp"
 	CompilerFlag: "-iframework"
 	CompilerFlag: "test/framework/search/path"
 	CompilerFlag: "-local-flag"
-	CompilerFlag: "src/Test.cpp"
+	CompilerFlag: "src/test.cpp"
 	ExcludeFilter: "**/excluded/**"

bin/test/data/SourceGroupTestSuite/java_empty/expected_output/output_windows.txt

@@ -1,16 +1,16 @@
-SourceFilePath: "src/foo/Bar.java"
+SourceFilePath: "src/foo/bar.java"
 	LanguageStandard: "10"
 	ClassPathItem: "lib/dependency.jar"
 	ClassPathItem: "classpath_dir"
 	ClassPathItem: "test/jre/system/library/path.jar"
 	ClassPathItem: "src"
-SourceFilePath: "src/foo/FooBar.java"
+SourceFilePath: "src/foo/foobar.java"
 	LanguageStandard: "10"
 	ClassPathItem: "lib/dependency.jar"
 	ClassPathItem: "classpath_dir"
 	ClassPathItem: "test/jre/system/library/path.jar"
 	ClassPathItem: "src"
-SourceFilePath: "src/foo/Main.java"
+SourceFilePath: "src/foo/main.java"
 	LanguageStandard: "10"
 	ClassPathItem: "lib/dependency.jar"
 	ClassPathItem: "classpath_dir"

bin/test/data/SourceGroupTestSuite/java_gradle/expected_output/output_windows.txt

@@ -1,9 +1,9 @@
-SourceFilePath: "src/main/java/hello/Greeter.java"
+SourceFilePath: "src/main/java/hello/greeter.java"
 	LanguageStandard: "10"
 	ClassPathItem: "test/jre/system/library/path.jar"
 	ClassPathItem: "src/main/java"
 	ClassPathItem: "src/test/java"
-SourceFilePath: "src/test/java/hello/HelloWorldTests.java"
+SourceFilePath: "src/test/java/hello/helloworldtests.java"
 	LanguageStandard: "10"
 	ClassPathItem: "test/jre/system/library/path.jar"
 	ClassPathItem: "src/main/java"

bin/test/data/SourceGroupTestSuite/java_maven/expected_output/output_windows.txt

@@ -1,19 +1,19 @@
-SourceFilePath: "my-app/src/main/java/com/mycompany/app/Bar.java"
+SourceFilePath: "my-app/src/main/java/com/mycompany/app/bar.java"
 	LanguageStandard: "10"
 	ClassPathItem: "test/jre/system/library/path.jar"
 	ClassPathItem: "my-app/src/main/java"
 	ClassPathItem: "my-app/src/test/java"
-SourceFilePath: "my-app/src/main/java/com/mycompany/app/FooBar.java"
+SourceFilePath: "my-app/src/main/java/com/mycompany/app/foobar.java"
 	LanguageStandard: "10"
 	ClassPathItem: "test/jre/system/library/path.jar"
 	ClassPathItem: "my-app/src/main/java"
 	ClassPathItem: "my-app/src/test/java"
-SourceFilePath: "my-app/src/main/java/com/mycompany/app/Main.java"
+SourceFilePath: "my-app/src/main/java/com/mycompany/app/main.java"
 	LanguageStandard: "10"
 	ClassPathItem: "test/jre/system/library/path.jar"
 	ClassPathItem: "my-app/src/main/java"
 	ClassPathItem: "my-app/src/test/java"
-SourceFilePath: "my-app/src/test/java/com/mycompany/app/AppTest.java"
+SourceFilePath: "my-app/src/test/java/com/mycompany/app/apptest.java"
 	LanguageStandard: "10"
 	ClassPathItem: "test/jre/system/library/path.jar"
 	ClassPathItem: "my-app/src/main/java"