Kovri: refactor bin install method, add kovri-util

Also adds more feedback to windows script.

References:
- monero-project/meta#50
- monero-project/meta#35
- monero-project/kovri#362

kovri/kovri-install.bat

@@ -82,7 +82,6 @@ REM
 REM TODO(anonimal): Install to Program Files?
 
 SET _path=%USERPROFILE%\Desktop
-SET _binary=kovri.exe
 
 IF NOT EXIST "%_data%%" (
   ECHO Creating "%_data%"
@@ -98,17 +97,20 @@ IF NOT EXIST "%_path%%" (
 
 SET _resources[0]=client
 SET _resources[1]=config
-SET _resources[2]=%_binary%
+SET _resources[2]=kovri.exe
+SET _resources[3]=kovri-util.exe
 
 FOR /F "tokens=2 delims==" %%s IN ('set _resources[') DO (
-  IF %%s == %_binary% (
-    COPY /Y %%s "%_path%"
-  ) ELSE (
+  IF EXIST %%s\* (
     XCOPY /F /S /E /Y %%s\* "%_data%"\%%s\*
+  ) ELSE (
+    COPY /Y %%s "%_path%"
   )
 )
 CALL :catch could not install resources
 
+ECHO Data directory is "%_data%"
+ECHO Binaries are located in "%_path%"
 ECHO Installation success!
 
 :catch

kovri/kovri-install.sh

@@ -99,7 +99,6 @@ done
 
 # Create new install
 _path=$HOME/bin
-_binary=kovri
 
 if [[ ! -d $_data ]]; then
   echo -n "Creating ${_data}"
@@ -113,9 +112,9 @@ if [[ ! -d $_path ]]; then
   catch "could not create $_path"
 fi
 
-_resources=(client config $_binary)
+_resources=(client config kovri kovri-util)
 for _i in ${_resources[@]}; do
-  if [[ $_i != $_binary ]]; then
+  if [[ -d $_i ]]; then
     echo -n "Copying $_i to $_data"
     cp -fR $_i "$_data"
   else