Odds & sods.
A little ICCCM work.
Fix long standing bugs in IL and EL.
Fix resize behaviour.
key_map.cxx style.
Fix bug: clear escSeq when processEscape() is called.
Use int32_t when clamping uint16_t in case it over/underflows.
Allocate the window background color and set it as a property.
Implemented DA.
Make utf8::Machine::next() not inline.
Improve escape seq handling and quiet the PRINT()s.