Revisit the current folder layout and naming convention. Restructure to avoid horizontal dependencies.

It was agreed to define tiers and levels:

• Each class will belong to one (and only one) tier and level;
• The first tier does not have any operating system dependencies (basic), the second tier depends on the operating system, the third tier depends in the file system, while the fourth will depend on advanced operating systems (processes, ...)
• The core namespace will be marte.
• The following namespaces will be aligned to the folder name.

General review¶

Date of the review: 29/09/2015

Person who did the review: Ivan Herrero

Version of the code:: 0.5

Result of review: This is a refactoring on folders and namespaces, so no essential code neither tests are modified (only namespaces clauses, includes, and makefiles).