Update supported compilers

Closes adnanaziz#63

.gitignore

@@ -20,6 +20,7 @@ __pycache__/
 
 # Generated by make
 cpp_build
+build
 
 epi_judge_java/java_build/
 *.class

README.md

@@ -82,37 +82,35 @@ The IntelliJ Integrated Development environments described above are best-in-cla
 - What compilers are supported for judge?
   - C++
     - Linux
-      - **GCC** 5.4.1
-      - **Clang** 4.0
+      - **GCC** 5.4.1 and newer
+      - **Clang** 4.0 and never
     - OS X  
-      - **Apple LLVM Clang** 9.0.0
+      - **Apple LLVM Clang** 9.0.0 and never
     - Windows
-      - **Visual Studio** 2017 15.7.0 Preview 6
-        - Release version of VS2017 contains a bug that makes it impossible to compile judge programs
-      - **MinGW** GCC 5.4.0
-      - **LXSS** (Windows Subsystem for Linux) GCC 5.4.0
+      - **Visual Studio** 2017 and newer
+      - **MinGW** GCC 5.4.0 and never
+      - **LXSS** (Windows Subsystem for Linux) GCC 5.4.0 and never
   - Java     
-    - **Java** 9
+    - **Java** 9 and never
   - Python
-    - **Python** 3.6
+    - **Python** 3.6 and never
 
 
 - What compilers are supported for solutions?
   - C++
       - Linux
-        - **GCC** 7.0.0
-        - **Clang** 5.0
+        - **GCC** 7.0.0 and never
+        - **Clang** 5.0 and never
       - OS X  
-        - **Apple LLVM Clang** 9.0.0
+        - **Apple LLVM Clang** 9.0.0 and never
       - Windows
-        - **Visual Studio** 2017 15.7.0 Preview 6
-            - Release version of VS2017 contains a bug that makes it impossible to compile judge programs
-        - **MinGW** GCC 7.2.0
-        - **LXSS** (Windows Subsystem for Linux) GCC 7.2.0
+      - **Visual Studio** 2017 and newer
+        - **MinGW** GCC 7.2.0 and never
+        - **LXSS** (Windows Subsystem for Linux) GCC 7.2.0 and never
     - Java     
-      - **Java** 9
+      - **Java** 9 and never
     - Python
-      - **Python** 3.6 
+      - **Python** 3.6 and never 
 
 Let us know if you managed to compile with an older version.