Update to core version 0.87.2
Add changelog stub for next version
Clarified exception message when opening a realm with insufficient permissions
s/process/app/
wrap path in single quotes
Merge pull request #1235 from realm/jp-insufficient-permissions-open-exception

Clarified exception message when opening a realm with insufficient permissions
split dynamic framework into separate device/simulator frameworks (closes #1163)
package dynamic frameworks
zip all ios frameworks together when packaging
mkdir -p since `build/ios` may already exist
Merge pull request #1253 from realm/jp-split-dynamic-frameworks

split dynamic framework into separate device/simulator frameworks
Update core version
Merge pull request #1262 from realm/tg-core-0.87.3

Update core version
Bump version to 0.89.1
Add changelog stub for next version
Build obj-c tests with -fobjc-arc-exceptions to avoid leaking memory when testing exceptions
Add support for interprocess change notifications
Switch to wait_for_change_release