Merge pull request #404 from GArik/EN

[RFC] Attempt to modernize text a bit
[zh] Fix tables with correct tab characters
[pt-br] Fix tables with correct tab characters
[it] Chapters 1-4: Apply uniform style of translation. Minor corrections. Update the translation.
[ja] Apply ccffb46d687bfb1c005965e0b49e27d05e816673
[ja] Apply bc3f922f2549e44524dc11301d1e53c984b14a1b
[ja] Apply b294744d98a6f6cdbc3508b0058f8616147c1596 and fix typo
Merge pull request #407 from harupong/ja-chapter1

[ja] Apply rest of the unapplied commits to ja chapter 1
[ja] Apply ccffb46d687bfb1c005965e0b49e27d05e816673
[ja] Apply b294744d98a6f6cdbc3508b0058f8616147c1596 and fix typo
[ja] Apply bc3f922f2549e44524dc11301d1e53c984b14a1b
Merge pull request #406 from tecnomente/master

[it] Chapters 1-4: Apply uniform style of translation. Minor corrections. Update the translation.
[ja] fix bug introduced by #407
Merge branch 'master' into fix-chapter1
Merge pull request #408 from harupong/fix-chapter1

[ja]Fix chapter1
[ja] Apply bc3f922f2549e44524dc11301d1e53c984b14a1b

The number of hunks is different from the original commit since some changes were already applied to ja translation and, as a result, hunk 20 of original commit became unnecessary.
[ja] Apply 4 commits to ja tree

Hunk 1: e1d6628e2f355577a2d38a9fd93db741631a4a40
Hunk 2: 0c34253095f327209aceab8b3170f93b0c0c4ed9
Hunk 3: 66d1feb527eeb302060e7a67db48816f86ce85e7
Hunk 4: ef5f3e63371b6172c13bb1d51f7f010bca423fa6
[ja] Apply c8571b3b9b7890e6da9d3823c13aed0079e8f257
[ja] Apply fbc3502da99c415d3aa38bcb11758e4e479594de
[ja] Apply bc3f922f2549e44524dc11301d1e53c984b14a1b