Return the connection string instead of the connection URL

This allows us to construct relative URLs by appending strings
instead of using the relative URL method, which doesn't work if the base URL is
a URL as opposed to just a hostname.

e-mission/e-mission-docs#732 (comment)

plugin.xml

@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <plugin xmlns="http://www.phonegap.com/ns/plugins/1.0"
         id="cordova-plugin-em-settings"
-        version="1.2.2">
+        version="1.2.3">
 
   <name>ConnectionSettings</name>
   <description>Simple package that stores all the connection settings that need to be configured</description>

src/ios/BEMConnectionSettings.h

@@ -14,7 +14,7 @@
 -(NSDictionary*)getSettings;
 -(NSDictionary*)getDefaultConfig;
 -(void)setSettings:(NSDictionary*)newConfig;
--(NSURL*) getConnectUrl;
+-(NSString*) getConnectString;
 -(NSString*) authMethod;
 -(NSString*) authValueForKey:(NSString*) key;
 @end

src/ios/BEMConnectionSettings.m

@@ -85,7 +85,7 @@ - (NSDictionary*)getDefaultConfig
 // from the plugin initialize methods before the javascript has the opportunity to set the config
 // Note that we cannot throw from the constructor instead because then we cannot create the shared instance
 // and even the javascript cannot set the config
-- (NSURL*)getConnectUrl
+- (NSString*)getConnectString
 {
     if (connSettingDict == NULL) {
         NSException* notFoundEx = [[NSException alloc] initWithName:@"SettingsNotFound"
@@ -94,7 +94,7 @@ - (NSURL*)getConnectUrl
         @throw notFoundEx;
     }
 
-    return [NSURL URLWithString:[connSettingDict objectForKey: @"connectUrl"]];
+    return [connSettingDict objectForKey: @"connectUrl"];
 }
 
 - (NSDictionary*) nativeAuth