thesis: Cleanups of todos/fixmes
thesis: Rewrite abstract and translate it to Greek
thesis: Fix a non-italicized cached reference
thesis: Do not focus to the O(1) aspect of cached

The reasons behind this change is that the inclusion of our
implementation's complexity in the title makes it seem as if it is a
defining feature, while in reality is a pleasant by-product.
thesis: Finalize title and abstract
thesis: Minor fixes in abstract and introduction
thesis: Minor fixes until Archipelago chapter
thesis: Rewrite triad chapter
thesis: Rewrite cached design chapter
thesis: Minor rewrites of listing titles
thesis: Make explanation move closer to a figure
thesis: Attempt to show screen in second screen
presentation: Fix the XeTeX second screen issuej
presentation: Start writing the presentation
presentatio: Report current progress
presentation: Fix Archipelago image
presentation: Complete the request handling part
presentation: Finish caching chapter
presentation: Start writing cached section
presentation: Finish cached design