Firecracker release v0.19.0

- fixed the version of backtrace as the updated version breaks the
  backwards compatibility.
- updated mailmap to deduplicate names & capitalize names

Signed-off-by: Andreea Florescu <[email protected]>

Author: andreeaflorescu

.mailmap

@@ -8,3 +8,5 @@ Rolf Neugebauer <[email protected]> <[email protected]>
 Serban Iorga <[email protected]> <[email protected]>
 Julian Stecklina <[email protected]> <[email protected]>
 Tamio-Vesa Nakajima <[email protected]> <[email protected]>
+Iulian Barbu <[email protected]>
+Petre Eftime <[email protected]> <[email protected]>

CREDITS.md

@@ -29,9 +29,11 @@ Contributors to the Firecracker repository:
 * Alexandru Branciog <[email protected]>
 * Andreea Florescu <[email protected]>
 * Andrei Cipu <[email protected]>
+* Andrei Sandu <[email protected]>
 * Arun Gupta <[email protected]>
 * Atsushi Ishibashi <[email protected]>
 * Bogdan Ionita <[email protected]>
+* chaos matrix <[email protected]>
 * Chinmay Kousik <[email protected]>
 * Chris Christensen <[email protected]>
 * Christopher Diehl <[email protected]>
@@ -55,11 +57,13 @@ Contributors to the Firecracker repository:
 * Hermes <[email protected]>
 * Iggy Jackson <[email protected]>
 * Ishwor Gurung <[email protected]>
+* Iulian Barbu <[email protected]>
 * James Turnbull <[email protected]>
 * Javier Romero <[email protected]>
 * Josh Abraham <[email protected]>
 * Julian Stecklina <[email protected]>
 * Kazuyoshi Kato <[email protected]>
+* Laura Loghin <[email protected]>
 * Liu Jiang <[email protected]>
 * Lloyd <[email protected]>
 * lloydmeta <[email protected]>
@@ -74,6 +78,7 @@ Contributors to the Firecracker repository:
 * Nicolas Mesa <[email protected]>
 * Noah Meyerhans <[email protected]>
 * Peng Tao <[email protected]>
+* Penny Zheng <[email protected]>
 * Petre Eftime <[email protected]>
 * Radu Matei Lăcraru <[email protected]>
 * Radu Weiss <[email protected]>
@@ -83,7 +88,9 @@ Contributors to the Firecracker repository:
 * Rodrigue Chakode <[email protected]>
 * Rolf Neugebauer <[email protected]>
 * Sam Jackson <[email protected]>
+* Samuel Ortiz <[email protected]>
 * Sean Lavine <[email protected]>
+* Sebastien Boeuf <[email protected]>
 * Serban Iorga <[email protected]>
 * Shen Jiale <[email protected]>
 * Sripracha <[email protected]>