Reduce code duplication for generic requests
Reduce code duplication for reading headers
Simplify Dalli::Server#read_header

As suggested by @mperham.
Merge pull request #429 from koraktor/code-quality

Reduce code duplication in Dalli::Server
namespace support symbol
add symbol support for namespace to history
proc should also be converted to string after called
remove :wunderschoen}
Merge pull request #431 from jaxi/feature/namespace_support_symbol

symbol support for namespace
Pool usage example
Merge branch 'master' of github.com:mperham/dalli
Transparently fix error with expiration intervals >30 days interpreted as timestamps by Memcached
moved tests for TTL translation to the test_server file [#436]
Added TTL translation to the history log [#436]
Merge pull request #436 from leonid-shevtsov/master

Fix for expiration intervals longer than 30 days
Deduplicate Dalli::Server#append and #prepend
Unify Dalli::Server#decr and #incr

This also supersedes #longlong.
Merge pull request #437 from koraktor/code-quality

 Reduce code duplication in Dalli::Server (Part 2)
improve description about installation and usage.
Do not raise ArgumentError, key cannot be blank if user forge a blank session cookie
when using dalli_store/mem_cache_store as session_store