Update text docs for Java 7

INSTALL-headless.txt

@@ -25,21 +25,22 @@ where there are comments labeled "PORTABLE". Do this before you
 run I2P for the first time.
 
 To start I2P:
-   (*nix): sh i2prouter start
+   (*nix, BSD, Mac): sh i2prouter start
    (win*): I2P.exe
-   (non-x86 platforms PPC, ARM, etc): sh runplain.sh
+   (platforms without wrapper support): sh runplain.sh
 
 To stop I2P (gracefully):
    lynx http://localhost:7657/summaryframe (click "Shutdown")
+   or (*nix, BSD, Mac) sh i2prouter graceful
 
 To stop I2P immediately:
-   sh i2prouter stop
+   (*nix, BSD, Mac) sh i2prouter stop
 
 To uninstall I2P:
    rm -rf $I2PInstallDir ~/.i2p
 
 Supported JVMs:
-  All platforms: Java 1.6 or higher required; 1.7 or higher recommended
+  All platforms: Java 1.7 or higher required
   Windows: OpenJDK or Oracle from http://java.com/download
   Linux:   OpenJDK or Oracle from http://java.com/download
   FreeBSD: OpenJDK or Oracle from http://java.com/download

INSTALL.txt

 I2P source installation instructions
 
 Prerequisites to build from source:
-	Java SDK (preferably Oracle/Sun or OpenJDK) 1.6.0 or higher
+	Java SDK (preferably Oracle/Sun or OpenJDK) 1.7.0 or higher
           Non-linux operating systems and JVMs: See https://trac.i2p2.de/wiki/java
+          Certain subsystems for embedded (core, router, mstreaming, streaming, i2ptunnel) require only Java 1.6
 	Apache Ant 1.7.0 or higher
 	The xgettext, msgfmt, and msgmerge tools installed
 	from the GNU gettext package http://www.gnu.org/software/gettext/
@@ -40,29 +41,30 @@ or on Windows, just double-click on i2pinstall.exe.
 Or move the i2pupdate.zip file into an existing installation directory and restart.
 
 To start I2P:
-   (*nix): sh i2prouter start
+   (*nix, BSD, Mac): sh i2prouter start
    (win*): I2P.exe or i2prouter.bat
-   (non-x86 platforms PPC, ARM, etc): sh runplain.sh
+   (platforms without wrapper support): sh runplain.sh
 
 To install I2P as a system service:
-   (*nix) sh i2prouter install
+   (*nix, BSD, Mac) sh i2prouter install
    (win*) install_i2p_service_winnt.bat
 
 To uninstall I2P as a system service:
-   (*nix) sh i2prouter remove
+   (*nix, BSD, Mac) sh i2prouter remove
    (win*) uninstall_i2p-service_winnt.bat
 
 To stop I2P (gracefully):
    lynx http://localhost:7657/summaryframe (click "Shutdown")
+   or (*nix, BSD, Mac) sh i2prouter graceful
 
 To stop I2P immediately:
-   sh i2prouter stop
+   (*nix, BSD, Mac) sh i2prouter stop
 
 To uninstall I2P:
    rm -rf $I2PInstallDir ~/.i2p
 
 Supported JVMs:
-  Windows: Latest available from http://java.com/download (1.5+ supported)
-  Linux:   Latest available from http://java.com/download (1.5+ supported)
-  FreeBSD: 1.5-compatible (NIO required)
+  Windows: Latest available from http://java.com/download (1.7+ supported)
+  Linux:   Latest available from http://java.com/download (1.7+ supported)
+  FreeBSD: 1.7-compatible (NIO required)
   Other operating systems and JVMs: See http://trac.i2p2.de/wiki/java

README.txt

 Prerequisites to build from source:
-	Java SDK (preferably Oracle/Sun or OpenJDK) 1.6.0 or higher
+	Java SDK (preferably Oracle/Sun or OpenJDK) 1.7.0 or higher
           Non-linux operating systems and JVMs: See https://trac.i2p2.de/wiki/java
+          Certain subsystems for embedded (core, router, mstreaming, streaming, i2ptunnel) require only Java 1.6
 	Apache Ant 1.7.0 or higher
 	The xgettext, msgfmt, and msgmerge tools installed
 	  from the GNU gettext package http://www.gnu.org/software/gettext/