[IMP] Group deprecation warnings and allow to ignore

[FIX] Pip is using p3 but default is p2

[FIX] ALLOW_DEPRECATED is not required as an env var

[FIX] Show deprecation count

[FIX] Remove debug message

[FIX] Do not count deprecation as general warnings

[IMP] Better log format and add debug information
1 job for master-allow_deprecated-truiz in 16 seconds (queued for 9 seconds)
Status Job ID Name Coverage
  Test
passed #345897
lint
test_install

00:00:16