Update release-notes.md

Eric Shaw Jr -> Eric Shaw (from GitHub profile)
gubatron -> Angel Leon (from GitHub profile)
jonnynewbs -> John Newbery (duplicate)
keystrike -> James Evans (duplicate)
Kibbled Jive Elk Zoo -> KibbledJiveElkZoo (duplicate)
kirit93 -> Kirit Thadaka (from GitHub profile)
NicolasDorier -> Nicolas Dorier (duplicate)

doc/release-notes.md

@@ -8,7 +8,7 @@ Bitcoin Core version *0.15.0* is now available from:
 This is a new major version release, including new features, various bugfixes
 and performance improvements, as well as updated translations.
 
-Please report bugs using the issue tracker at github:
+Please report bugs using the issue tracker at GitHub:
 
   <https://github.com/bitcoin/bitcoin/issues>
 
@@ -292,6 +292,7 @@ Thanks to everyone who directly contributed to this release:
 - Allan Doensen
 - Andres G. Aragoneses
 - Andrew Chow
+- Angel Leon
 - Awemany
 - Bob McElrath
 - Brian McMichael
@@ -306,7 +307,7 @@ Thanks to everyone who directly contributed to this release:
 - Daniel Cousens
 - darksh1ne
 - Dimitris Tsapakidis
-- Eric Shaw Jr
+- Eric Shaw
 - Evan Klitzke
 - fanquake
 - Felix Weis
@@ -314,7 +315,6 @@ Thanks to everyone who directly contributed to this release:
 - Greg Griffith
 - Gregory Maxwell
 - Gregory Sanders
-- gubatron
 - Ian Kelling
 - Jack Grigg
 - James Evans
@@ -326,15 +326,12 @@ Thanks to everyone who directly contributed to this release:
 - Johnathan Corgan
 - John Newbery
 - Jonas Schnelli
-- jonnynewbs
 - Jorge Timón
 - Kalle Alm
 - Karl-Johan Alm
-- Kewde
+- kewde
-- keystrike
 - KibbledJiveElkZoo
-- Kibbled Jive Elk Zoo
+- Kirit Thadaka
-- kirit93
 - kobake
 - Kyle Honeycutt
 - Lawrence Nahum
@@ -355,7 +352,6 @@ Thanks to everyone who directly contributed to this release:
 - Mike van Rossum
 - Mitchell Cash
 - Nicolas Dorier
-- Nicolas Dorier
 - Patrick Strateman
 - Pavel Janík
 - Pavlos Antoniou