2366 - Made logging more consistent throughout the code base.

- Added periods to the end of every log line.
- Removed "SignalR:" from beginning of logged lines so it wasn't logged twice.
- Re-worded some language
- Added Long poll complete log

#2366

Logging for each transport start:

```
Long Polling:
[12:13:43 PDT] SignalR: Negotiating with '/signalr/negotiate?connectionData=%5B%7B%22name%22%3A%22statushub%22%7D%5D&clientProtocol=1.3'. 
[12:13:43 PDT] SignalR: Opening long polling request to 'http://localhost:40476/signalr/connect?transport=longPolling&connectionToken=sSb5919bEakNKrwHL5d5bzX6392LGElTWQ9UKwu7BYLsB0%2BzFPTYn3TuiVvd%2F4TMtqzeUUzukPpqHV9Z7%2FFDQbLx8OaOgOsbj84LOj8LNS0QEL4tSvU4eJhtw2dbKzQ8&connectionData=%5B%7B%22name%22%3A%22statushub%22%7D%5D&tid=0'. 
[12:13:43 PDT] SignalR: Long poll complete. 
[12:13:43 PDT] SignalR: LongPolling connected.
[12:13:43 PDT] SignalR: Opening long polling request to 'http://localhost:40476/signalr/poll?transport=longPolling&connectionToken=sSb5919bEakNKrwHL5d5bzX6392LGElTWQ9UKwu7BYLsB0%2BzFPTYn3TuiVvd%2F4TMtqzeUUzukPpqHV9Z7%2FFDQbLx8OaOgOsbj84LOj8LNS0QEL4tSvU4eJhtw2dbKzQ8&messageId=d-5C91249B-B%2C0%7CL%2C0%7CM%2C1%7CN%2C0&connectionData=%5B%7B%22name%22%3A%22statushub%22%7D%5D&tid=2'. 

Server Sent Events:
[12:14:35 GMT-0700 (Pacific Daylight Time)] SignalR: Negotiating with '/signalr/negotiate?connectionData=%5B%7B%22name%22%3A%22statushub%22%7D%5D&clientProtocol=1.3'.
[12:14:35 GMT-0700 (Pacific Daylight Time)] SignalR: Attempting to connect to SSE endpoint 'http://localhost:40476/signalr/connect?transport=serverSentEvents&connectio…2BkC22N4WuJo&connectionData=%5B%7B%22name%22%3A%22statushub%22%7D%5D&tid=1'.
[12:14:35 GMT-0700 (Pacific Daylight Time)] SignalR: EventSource connected.
[12:14:35 GMT-0700 (Pacific Daylight Time)] SignalR: Now monitoring keep alive with a warning timeout of 13333.333333333332 and a connection lost timeout of 20000.

Forever Frame:
[12:15:27 PDT] SignalR: Negotiating with '/signalr/negotiate?connectionData=%5B%7B%22name%22%3A%22statushub%22%7D%5D&clientProtocol=1.3'. 
[12:15:27 PDT] SignalR: Binding to iframe's readystatechange event. 
[12:15:27 PDT] SignalR: Iframe active. 
[12:15:27 PDT] SignalR: Now monitoring keep alive with a warning timeout of 13333.333333333332 and a connection lost timeout of 20000.

Web Sockets:
[12:15:55 PDT] SignalR: Negotiating with '/signalr/negotiate?connectionData=%5B%7B%22name%22%3A%22statushub%22%7D%5D&clientProtocol=1.3'. 
[12:15:55 PDT] SignalR: Connecting to websocket endpoint 'ws://localhost:40476/signalr/connect?transport=webSockets&connectionToken=KUf3DUXLeyWC7kubBX5I6fDpT%2BDmXCjLtuB5myOaQ2zsRyzgSYm%2F56gK9LLLBNYiz76DkO6kG3b7DTlPT7BUS%2BQIT7GwNWRDjWsTP3xkb0wwo8o3C99atzbny3HILDbY&connectionData=%5B%7B%22name%22%3A%22statushub%22%7D%5D&tid=8'.
[12:15:55 PDT] SignalR: Websocket opened.
[12:15:55 PDT] SignalR: Now monitoring keep alive with a warning timeout of 13333.333333333332 and a connection lost timeout of 20000.
```