Merge branch 'master' of github.com:vhf/free-programming-books
Merge remote-tracking branch 'central/master'
Update free-programming-books.md

Fixed typo.
Merge remote-tracking branch 'central/master'
Merge remote-tracking branch 'central/master'
Merge pull request #754 from varanus/master

german book list corrections
[es] Adding a El camino a un mejor programador
Merge pull request #755 from esparta/master

[es] Adding a misc book
Update try objective C book URL #756
Django-ES, Web2py-Es and Rails as sublist of Ruby
Merge pull request #757 from alejandrorojmu/patch-1

Django-ES, Web2py-Es and Rails as sublist of Ruby
[en] 2 more perl books
Add a new TypeScript book
Merge pull request #758 from esparta/master

[en] 2 more perl books
Merge pull request #759 from Mouseion/patch-typescript

Add a new TypeScript book
add link to "An Introduction to Scheme and its Implementation" ftp://ftp.cs.utexas.edu/pub/garbage/cs345/schintro-v14/schintro_toc.html

a new link to a scheme book
Merge pull request #760 from pablogrisafi1975/patch-1

add link to "An Introduction to Scheme and its Implementation" ftp://ftp...
[es] Cleaning some links added C book+section
Close #761
[es] Sorting the C list