[#58025764] Change out old icons for new icons in building for ios guide.
[#58025764] Fix icons in create a new project guide
[#58025764] Fix typo in project-structure-4.0.png link.
[#58025764] update the rest of the images in the create_a_project page to 4.0 images.
Merge pull request #70 from rhomobile/new-icons

[#58025764] Change out old icons for new icons in building for ios guide...