fix spurious errors while compiling to pdf

The makepdf script monitors latex by looking for lines beginning
by '! ' in the logs. Unfortunately, it uses a regexp while latex
seems to spit lines which are not perfect utf-8. The regexp may raise
an exception.

It is safer to just check the first two characters of each line.
This may fix github/progit#12
Merge pull request #314 from progit/fix_spurious_utf8_errors

fix spurious errors while compiling to pdf
Set the typewrite text font size in latex template

Instead of applying the font size change at each occurence of texttt,
set the monofont size at the declaration.
Merge pull request #315 from progit/fix_texttt

Set the typewrite text font size in latex template
Reword the phrase about a clean directory

When the directory is clean, no tracked files are modified.
[cs] Full Czech translation synchronized with the original.
[cs] ch. 6 and 7 -- unpaired non-ASCII double quotes fixed
[cs] Editing of bugs discovered by the 'rake ci:check'
Merge pull request #317 from pepr/master

[cs] Full Czech translation synchronized with the original.
Fix enumerated lists markdown 2

It's a follow-up to commit 64736f49ad.
Merge pull request #319 from GArik/EN

Fix enumerated lists markdown 2
Translations for chapter 5

Translate "Mantaining a Project", "Working in topic branches", "Applying patches from e-mail", "Applying a patch with apply" sections.
refined several sentences, and fixed a translation error
Merge pull request #321 from nico87/it-chapter5

Translations for chapter 5
Merge pull request #322 from kelvinh/master

Refined several sentences, and fixed a translation error
[cs] Figure captions introduced by "Figure" instead of "Obrázek"

The translator notes moved to the separate file
cs/09-git-internals/02-translation-notes.markdown
Merge pull request #323 from pepr/master

[cs] Figure captions introduced by "Figure" instead of "Obrázek"
fixed a translation error
Merge pull request #324 from kelvinh/master

[zh_CN]Fixed a translation error
fixed a translation error