build

remove old CI files (travis, appveyor) #155

Job	Run time
WinXP x86 Release (Non-Portable)	16m 27s
macOS x86_64 Debug (Non-Portable)	5m 35s
WinXP x86_64 Release (Non-Portable)	12m 10s
Ubuntu x86 Debug (Non-Portable)	5m 16s
macOS x86_64 Release (Non-Portable)	6m 46s
Windows x86 Debug (Non-Portable)	5m 29s
Ubuntu x86 Release (Non-Portable)	7m 27s
Windows x86 Release (Portable)	8m 50s
Ubuntu x86_64 Debug (Non-Portable)	4m 12s
Windows x86 Release (Non-Portable)	6m 50s
Ubuntu x86_64 Release (Non-Portable)	5m 52s
Windows x86_64 Debug (Non-Portable)	4m 54s
Windows x86_64 Release (Portable)	6m 50s
Windows x86_64 Release (Non-Portable)	8m 40s
create-release	0s
create-latest	0s
	1h 45m 18s

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