removed deprecated Duplex from synchronous concurrency
Merge pull request #167 from pfalabella/synch-remove-duplex

removed deprecated DuplexStream from synchronous concurrency
implementation of 24game/solve (squashed)
Merge pull request #166 from pfalabella/24-game-impl

24 game/solve implementation
(squashed) added ABC Problem with contains_char
Merge pull request #168 from pfalabella/abc-problem

added ABC Problem
Renamed a+b.rs to a_plus_b.rs
(re-squashed) to_str() -> to_string() - now builds
Merge pull request #169 from pfalabella/to-str-remove

to_str() -> to_string()
# This is a combination of 3 commits.
# The first commit's message is:
Add HTTP

# The 2nd commit message will be skipped:

#	Add HTTP

# The 3rd commit message will be skipped:

#	Add HTTP
(squashed) added Run-length encoding + comment
Merge pull request #171 from pfalabella/look-and-say

added Look-and-say sequence
squashed refactoring
Merge pull request #172 from pfalabella/aks-test

ported AKS test for primes solution on rosettacode to Rust latest
Replace deprecated functions by new ones
Merge pull request #154 from Hoverbear/http

Add HTTP - Still a bit slow.
http: Hint for the server to kill the connection after responding.
Merge pull request #173 from Ryman/http_nowait

http: Hint for the server to kill the connection after responding.
Update read_file_line to use index.
aks_test_for_primes to use index.