Many fixes to the stability of the feature tests, including:

tree toggle issue
Query tool inteliSence issue eg. when there is only one option and drop down is not shown
Backup and restore windows locator changes
Fixes required due to resolving rm # 4041
Dependent tab not showing data sometime, so refreshed the page and handled it
Due to change of logic for auto commit, did the required changes
Due to fix of RM 4062, did the required workaround which broke the test case.

web/pgadmin/utils/route.py

@@ -53,7 +53,7 @@ class TestsGeneratorRegistry(ABCMeta):
         ABCMeta.__init__(cls, name, bases, d)
 
     @classmethod
-    def load_generators(cls, pkg_root, exclude_pkgs):
+    def load_generators(cls, pkg_root, exclude_pkgs, for_modules=[]):
 
         cls.registry = dict()
 
@@ -61,6 +61,13 @@ class TestsGeneratorRegistry(ABCMeta):
 
         all_modules += find_modules(pkg_root, False, True)
 
+        # If specific modules are to be tested, exclude others
+        if len(for_modules) > 0:
+            all_modules = [module_name
+                           for module_name in all_modules
+                           for fmod in for_modules
+                           if module_name.endswith(fmod)]
+
         # Check for SERVER mode
         for module_name in all_modules:
             try: