Add deprecated Page.getTemplates() for backward compatibility

Change-Id: I2ec3ed7c396ff08bbaf03ee09a7a5dc4a4b05845
Add checkimages from compat to core

Note: -wait option is not implemented yet. It needs additional
methods from compat. Coming soon...

Change-Id: I637a6b55bf0a0336df642552053337ba8368bb20
Merge "Add deprecated Page.getTemplates() for backward compatibility"
Merge "Add checkimages from compat to core"