Error message/exception when server connection parameters are wrong should be more informative

[myrle-krantz]

Exception in thread "main" com.google.gson.JsonSyntaxException: java.lang.IllegalStateException: Not a JSON Object: "Welcome"
at com.google.gson.Gson.fromJson(Gson.java:826)
at com.google.gson.Gson.fromJson(Gson.java:779)
at com.google.gson.Gson.fromJson(Gson.java:728)
at org.stellar.sdk.requests.ResponseHandler.handleResponse(ResponseHandler.java:45)
at org.apache.http.client.fluent.Response.handleResponse(Response.java:90)
at org.stellar.sdk.requests.AccountsRequestBuilder.execute(AccountsRequestBuilder.java:35)
at org.stellar.sdk.requests.AccountsRequestBuilder.execute(AccountsRequestBuilder.java:39)
at org.mifos.connector.stellar.SendTransaction.main(SendTransaction.java:17)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at com.intellij.rt.execution.application.AppMain.main(AppMain.java:144)

[overcat]

Since this issue has been inactive for a long time and a lot of things have changed, I decided to close it. If there are any further issues later on, feel free to reopen it.