Fix a typo in settings documentation.

Closes https://github.com/square/okhttp/issues/1105
Be consistent about host names in RouteSelector.

Use the host specified by the address, and not URI.getHost().

bug: 18023709
Change-Id: I2c39c2ce89049130dc00047c8de6f214159144c0
Fix a concurrency bug in SPDY settings.

We were making a copy of the streams HashMap so that we could
iterate it safely after releasing our lock. But we weren't
actually using that copy when iterating. Whoops!

Fixes https://github.com/square/okhttp/issues/1119
Merge pull request #1121 from square/jwilson_1103_routeselector

Be consistent about host names in RouteSelector.
Merge pull request #1122 from square/jwilson_1103_use_copy

Fix a concurrency bug in SPDY settings.
Merge pull request #1120 from square/jwilson_1103_settings_tpyo

Fix a typo in settings documentation.
Import DiskLruCache tests.

See https://github.com/JakeWharton/DiskLruCache/blob/master/src/test/java/com/jakewharton/disklrucache/DiskLruCacheTest.java
Merge pull request #1123 from square/jwilson_1103_import_disklrucache_tests

Import DiskLruCache tests.
Implement DiskLruCache.evictAll and expose it in Cache.

Closes https://github.com/square/okhttp/issues/257
Merge pull request #1124 from square/jwilson_1104_evictall

Implement DiskLruCache.evictAll and expose it in Cache.
Adjust new 2.1 APIs.

ConnectionConfiguration was missing a Builder. We had slightly
misleading docs in OkHttpClient.setFollowRedirects().

All the other new docs look pretty reasonable.
Update the changelog for 2.1.0-RC1
Merge pull request #1127 from square/jwilson_1104_apis

Adjust new 2.1 APIs.
Rename ConnectionConfiguration to ConnectionSpec.
Merge pull request #1128 from square/jwilson_1104_connectionspec

Rename ConnectionConfiguration to ConnectionSpec.
Bump pom versions to 2.1.0-SNAPSHOT.
Permit release candidates in version numbers.
Exclude the hpacktests submodule.
[maven-release-plugin] prepare release parent-2.1.0-RC1
[maven-release-plugin] prepare for next development iteration