Update premake used by travis

The compiled binary is based upon https://github.com/multitheftauto/premake-core (Branch: release/travis)

Also fix linux-build.sh to use the correct premake path

Author: jushar

.travis.yml

@@ -29,7 +29,7 @@ matrix:
         NIGHTLY_UPLOAD=0
 
 before_script:
-  - wget https://github.com/sbx320/premake5-travis/blob/master/premake5?raw=true -O ./premake5 &&
+  - wget https://mirror.mtasa.com/bdata/premake5-travis -O ./premake5 &&
     chmod +x ./premake5 &&
     ./premake5 gmake && 
     cd Build

linux-build.sh

@@ -1,11 +1,10 @@
 #!/bin/bash
 
-if [[ "$(uname -m)" == 'x86_64' ]]; then
-    PREMAKE5=utils/premake5_x64
-    CONFIG=release_x64
-else
-    PREMAKE5=utils/premake5_x86
+PREMAKE5=utils/premake5
+if [ "$1" -eq "32" ]; then
     CONFIG=release_x86
+else
+    CONFIG=release_x64
 fi
 
 # Clean old build files

linux-install-data.sh

@@ -1,10 +1,6 @@
 #!/bin/bash
 
-if [[ "$(uname -m)" == 'x86_64' ]]; then
-    PREMAKE5=utils/premake5_x64
-else
-    PREMAKE5=utils/premake5_x86
-fi
+PREMAKE5=utils/premake5
 
 # Install data files
 $PREMAKE5 install_data