Added requirements to docs

docs/general/requirements.md

+### System Requirements
+
+Biopet is build on top of GATK Queue, which requires having `java` installed on the analysis machine(s).
+
+For end-users:
+
+ * [Java 7 JVM](http://www.oracle.com/technetwork/java/javase/downloads/index.html) or [OpenJDK 7](http://openjdk.java.net/install/)
+ * [Cran R 2.15.3](http://cran.r-project.org/)
+
+For developers:
+
+ * [OpenJDK 7](http://openjdk.java.net/install/) 
+ * Minimum of 4 GB RAM {todo: provide more accurate estimation on building}
+ * Maven 3
+ * Compiled and installed in maven repository version of [GATK + Queue](https://github.com/broadgsa/gatk-protected/)
+ * IntelliJ or Netbeans 8.0 for development
+

mkdocs.yml

@@ -3,6 +3,7 @@ pages:
 - Home: 'index.md'
 - General:
     - Config: 'general/config.md'
+    - Requirements: 'general/requirements.md'
 - Pipelines:
     - Basty: 'pipelines/basty.md'
     - Bam2Wig: 'pipelines/bam2wig.md'