Merge Request #17 - January

Features

• Property: make them thread-safe by default
• AnyValue: add at() function
• Python: support loading python modules

Bugfixes

• BoundObject: call cancel asynchronously to avoid blocking network thread
• Server: remove spurious error log
• Actor: make constructor explicit
• Strand: fix crash when using the scheduler of a dead strand
• BoundObject: fix crash on destruction
• AnyFunction: fix crash when returning a reference to a shared pointer
• Python: fix deadlock when using future.unwrap() and promise.setValue() at the same time