Updating default encryption scheme
Adding no-store Cache-Control directive to API requests.
Updating shared submodule (forcetk updates)
Merge pull request #376 from khawkins/update_default_encryption

Updating default encryption scheme
Amending OAuth encryption to differentiate access and refresh token storage
Adding logic to remove old Xcode templates
Removing request logging, for security
Merge pull request #384 from khawkins/remove_old_templates

Adding logic to remove old Xcode templates
Merge pull request #385 from khawkins/remove_api_logging

Removing request logging, for security
Merge pull request #383 from khawkins/oauth_encryption_fixes

Amending OAuth encryption to differentiate access and refresh token storage
Fixing background crashes

- Attempting to retrieve the user agent in `SFSDKWebUtils` on a background thread was crashing.
- Initiating the OAuth User Agent flow from a background thread was crashing.
Normalizing build_npm.xml with the unstable updates
dispatch_sync to main thread is okay, if you're not on the main thread
Merge pull request #386 from khawkins/background_auth_crash

Fixing background crashes
Merge pull request #387 from khawkins/build_npm_update

Normalizing build_npm.xml with the unstable updates
Updating SDK version
Merge pull request #389 from forcedotcom/202_patch

2.0.2 patch