Cpp: Correct content and markup
Add XQuartz instructions for 10.8
Fix Python dependencies installation script name
Cpp: Add GCC, Ice and Boost requirements and restrictions
merge dev_4_4 -D org -I include -E exclude: PR 346 (Training update april 13 1)
merge dev_4_4 -D org -I include -E exclude: PR 361 (Further corrections to troubleshooting)
merge dev_4_4 -D org -I include -E exclude: PR 367 (Fix OMERO version number generation (rebased onto dev_4_4))
merge dev_4_4 -D org -I include -E exclude: PR 368 (Cpp: Correct content and markup)
merge dev_4_4 -D org -I include -E exclude: PR 371 (Homebrew xquartz)