make: added CPU_MODEL & TERMFLAGS to Makefile.vars

- added CPU_MODEL variable
- added TERMFLAGS variable
- fixed a little style (dots on the end of comments)

Makefile.vars

@@ -4,6 +4,7 @@ export QUIET                 # The parameter to use whether to show verbose make
 export APPLICATION           # The application, set in the Makefile which is run by the user.
 export BOARD                 # The board to compile the application for.
 export CPU                   # The CPU, set by the board's Makefile.include.
+export CPU_MODEL             # The specific identifier of the used CPU, used for some CPU implementations to differentiate between different memory layouts
 export MCU                   # The MCU, set by the board's Makefile.include, or defaulted to the same value as CPU.
 export INCLUDES              # The extra include paths, set by the various Makefile.include files.
 
@@ -37,12 +38,13 @@ export UNDEF                 # Set by the BOARD's and CPU's Makefile.include, th
 export FLASHER               # The command to call on "make flash".
 export FFLAGS                # The parameters to supply to FLASHER.
 export TERMPROG              # The command to call on "make term".
-export PORT                  # The parameters to supply to TERMPROG.
+export TERMFLAGS             # Additional parameters to supply to TERMPROG.
+export PORT                  # The port to connect the TERMPROG to.
 export ELFFILE               # The unstripped result of the compilation.
 export HEXFILE               # The stripped result of the compilation.
-export DEBUGGER              # The command to call on "make debug", usually a script starting the GDB front-end
-export DEBUGGER_FLAGS        # The parameters to supply to DEBUGGER
-export DEBUGSERVER           # The command to call on "make debug-server", usually a script starting the GDB server
-export DEBUGSERVER_FLAGS     # The parameters to supply to DEBUGSERVER
-export RESET                 # The command to call on "make reset", this command resets/reboots the target
-export RESET_FLAGS           # The parameters to supply to RESET
+export DEBUGGER              # The command to call on "make debug", usually a script starting the GDB front-end.
+export DEBUGGER_FLAGS        # The parameters to supply to DEBUGGER.
+export DEBUGSERVER           # The command to call on "make debug-server", usually a script starting the GDB server.
+export DEBUGSERVER_FLAGS     # The parameters to supply to DEBUGSERVER.
+export RESET                 # The command to call on "make reset", this command resets/reboots the target.
+export RESET_FLAGS           # The parameters to supply to RESET.