documentation: Added support for "pyro" name and May release date.

poky.ent - changed the "tbd" and "TBD" strings to "pyro" and
           "Pyro", respectively.

Manual Head Files - Updated the manual history table with the
           May release month.

(From yocto-docs rev: 076226d2986d0cf69685121e4342f50c1603fc7b)

Signed-off-by: Scott Rifenbark <srifenbark@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

documentation/bsp-guide/bsp-guide.xml

@@ -115,7 +115,7 @@
             </revision>
             <revision>
                 <revnumber>2.3</revnumber>
-                <date>Proposed for April 2017</date>
+                <date>May 2017</date>
                 <revremark>Released with the Yocto Project 2.3 Release.</revremark>
             </revision>
         </revhistory>

documentation/dev-manual/dev-manual.xml

@@ -93,7 +93,7 @@
             </revision>
             <revision>
                 <revnumber>2.3</revnumber>
-                <date>Proposed for April 2017</date>
+                <date>May 2017</date>
                 <revremark>Released with the Yocto Project 2.3 Release.</revremark>
             </revision>
         </revhistory>

documentation/kernel-dev/kernel-dev.xml

@@ -78,7 +78,7 @@
             </revision>
             <revision>
                 <revnumber>2.3</revnumber>
-                <date>Proposed for April 2017</date>
+                <date>May 2017</date>
                 <revremark>Released with the Yocto Project 2.3 Release.</revremark>
             </revision>
         </revhistory>

documentation/mega-manual/mega-manual.xml

@@ -62,7 +62,7 @@
             </revision>
             <revision>
                 <revnumber>2.3</revnumber>
-                <date>Proposed for April 2017</date>
+                <date>May 2017</date>
                 <revremark>Released with the Yocto Project 2.3 Release.</revremark>
             </revision>
        </revhistory>

documentation/poky.ent

@@ -1,7 +1,7 @@
 <!ENTITY DISTRO "2.3">
 <!ENTITY DISTRO_COMPRESSED "23">
-<!ENTITY DISTRO_NAME_NO_CAP "tbd">
+<!ENTITY DISTRO_NAME_NO_CAP "pyro">
-<!ENTITY DISTRO_NAME "TBD">
+<!ENTITY DISTRO_NAME "Pyro">
 <!ENTITY YOCTO_DOC_VERSION "2.3">
 <!ENTITY POKYVERSION "18.0.0">
 <!ENTITY POKYVERSION_COMPRESSED "1800">

documentation/profile-manual/profile-manual.xml

@@ -78,7 +78,7 @@
             </revision>
             <revision>
                 <revnumber>2.3</revnumber>
-                <date>Proposed for April 2017</date>
+                <date>May 2017</date>
                 <revremark>Released with the Yocto Project 2.3 Release.</revremark>
             </revision>
         </revhistory>

documentation/ref-manual/ref-manual.xml

@@ -109,7 +109,7 @@
             </revision>
             <revision>
                 <revnumber>2.3</revnumber>
-                <date>Proposed for April 2017</date>
+                <date>May 2017</date>
                 <revremark>Released with the Yocto Project 2.3 Release.</revremark>
             </revision>
         </revhistory>

documentation/sdk-manual/sdk-manual.xml

@@ -43,7 +43,7 @@
             </revision>
             <revision>
                 <revnumber>2.3</revnumber>
-                <date>Proposed for April 2017</date>
+                <date>May 2017</date>
                 <revremark>Released with the Yocto Project 2.3 Release.</revremark>
             </revision>
        </revhistory>

documentation/toaster-manual/toaster-manual.xml

@@ -53,7 +53,7 @@
             </revision>
             <revision>
                 <revnumber>2.3</revnumber>
-                <date>Proposed for April 2017</date>
+                <date>May 2017</date>
                 <revremark>Released with the Yocto Project 2.3 Release.</revremark>
             </revision>
        </revhistory>