Type mismatch corrections (Windows 64 bits)

This patch removes the type mismatch warnings revealed by Windows 64
compiler.  Wherever necessary, used size_t type for size related data.

Change-Id: Ie045ce95940cd83fe8d681168ac9526fc6028d43
Signed-off-by: Patrick Benavoli <patrick.benavoli@intel.com>
diff --git a/parameter/RuleParser.h b/parameter/RuleParser.h
index f701d76..803ea3e 100644
--- a/parameter/RuleParser.h
+++ b/parameter/RuleParser.h
@@ -78,8 +78,8 @@
     std::string _strApplicationRule;
     // Criteria defintion
     const CSelectionCriteriaDefinition* _pSelectionCriteriaDefinition;
-    // Iterator
-    uint32_t _uiCurrentPos;
+    /** String iterator */
+    std::string::size_type _uiCurrentPos;
     // Deepness
     uint32_t _uiCurrentDeepness;
     // Current Type