Fix for CSE-51

- Fix issue of extra folder inside the add-in.zip file.

Fix for CSE-51

- Fixed an unsubscribe in the js client code.
- Fixed a race in the js client code.
- Removed the code in the RTD cs file which was removing old subscriptions, now they simply stay dormant until they're reconnected.

Update ExcelDNA to v1.5.0 (#65)

* Updated excel dna to latest version and bumped to version 4.1.0

* Updated add-in.zip with signed assemblies.

* Updated add-in.zip to include more signed assemblies.

Co-authored-by: John M <[email protected]>

Merge pull request #63 from openfin/origin/XL-125

Release 4.0.7

Checkin of 4.0.6 (#61)

Fix for readonly caption and heartbeat timeout for RTD (#60)

Update with rebuild add-in package (#59)

Some assemblies were missing from the zip

Merge pull request #58 from openfin/XL-121---workbook-save-not-refres…

…hing-name

XL-121 - Refresh workbook object on rename

Updated to clear rtd cell on provider close (#57)

Updated dependencies for the add in (around packaging/zipping) to be latest stable.
Removed the option to not clear rtd topic cells when calling dispose as we now clear the cell value when the provider is shutdown.
Updated output of index.d.ts in src so it could be used for typing information.
Updated documentation.

Xl 119/launch race condition - Release 4.0.1 (#56)

* Updated release 4.0.1 (packed using webpack 2.x)

* Fixed the RTD Disconnect events for a topic on close

- Revert to webpack until config can be updated.

Co-authored-by: John M <[email protected]>