Custom Headers & small corrections

added support for custom headers.
smalls corrections :
- removed @Property for m_OData_etag in TableEntry (Allready in super class)
- changed m_headers allocation to NSMutableDictionary Type in DataServiceStreamResponse l.51
- added @synthesize for m_entityFKRelation in ObjectContext (@Property existing but no @syntesize)
-Changed allocation type to NSMutableArray in ObjectContext.m l.1562

Framework/src/MSODataLib/Azure/TableEntry.h

@@ -31,7 +31,6 @@
 
 }
 
-@property(nonatomic,retain, getter=getEtag,		setter=setEtag:		)NSString *m_OData_etag;
 
 @property(nonatomic,retain, getter=getObjectID,		setter=setObjectID:		)NSString *m_OData_obectID;
 

Framework/src/MSODataLib/Context/DataServiceStreamResponse.m

@@ -48,7 +48,7 @@ - (id) initWithHttpResponse:(HttpResponse*)aHttpResponse
 		}
 		else
 		{
-			m_headers = [[NSMutableArray alloc] init];
+			m_headers = [[NSMutableDictionary alloc] init];
 		}
 
     }

Framework/src/MSODataLib/Context/ObjectContext.m

@@ -46,6 +46,7 @@ @implementation ObjectContext
 @synthesize m_Credential;
 @synthesize m_entities;
 @synthesize m_timeOutInterval;
+@synthesize m_entityFKRelation;
 
 + (void)initialize
 {
@@ -610,7 +611,12 @@ -(HTTPHandler*) executeHTTPRequest:(NSString *)aUri httpmethod:(NSString *)metho
 	else
 		httpdata = [[NSData alloc] initWithData:[body dataUsingEncoding:NSUTF8StringEncoding]];
 
-	HTTPHandler * httpHandler =  [self executeHTTPRequest:aUri httpmethod:method httpbodydata:httpdata etag:etag customHeaders:nil];
+	HTTPHandler * httpHandler = nil;
+    if ([m_customHeaders count] != 0) 
+        httpHandler =  [self executeHTTPRequest:aUri httpmethod:method httpbodydata:httpdata etag:etag customHeaders:m_customHeaders];
+    else
+        httpHandler =  [self executeHTTPRequest:aUri httpmethod:method httpbodydata:httpdata etag:etag customHeaders:nil];
+
 	[httpdata release];
 	return httpHandler;	
 }
@@ -1553,7 +1559,7 @@ - (void) attachLocation:(ODataObject*)anODataObject location:(NSString*)aLocatio
 
 -(void) setEntitiesWithArray:(NSArray *)anArray
 {
-	[self setEntities:[[[NSArray alloc]initWithArray:anArray] autorelease] ];
+	[self setEntities:[[[NSMutableArray alloc]initWithArray:anArray] autorelease] ];
 }