FLUME-2481. TestFileChannelEncryption fails with System locale other than en_US

(Santiago M. Mola via Hari)
FLUME-2492. Flume's Kafka Source doesn't account time correctly

(Gwen Shapira via Hari)
FLUME-2479. Kafka property auto.commit.enable is incorrect for KafkaSource.

(Gwen Shapira via Hari)
FLUME-2479. Adding new test files.

(Gwen Shapira via Hari)
FLUME-2495. Kafka Source may miss events when channel is not available

(Gwen Shapira via Hari)
FLUME-2466. Embedded agent name cannot contain spaces

(Johny Rufus via Hari)
[FLUME-2215] ResettableFileInputStream can't support ucs-4 character.

Patch by Alexandre Dutra:
https://issues.apache.org/jira/secure/attachment/12620855/FLUME-2215-1.patch
Force English Locale on SyslogUtils.

This ensures that English locale is used to parse syslog dates
even on systems with different locales.
Ensure proper file permissions on TestHDFSEventSinkOnMiniCluster.

MiniDFSCluster will fail if DFS_DIR has permissions other than
rwxr-x-r-x. This is usually accomplished by having umask set to
0022, which is unconvenient for testing. So we try to set such
permissions with setfacl.
Always use .to*Case() with Locale.ENGLISH.
Add Travis CI conf.
Fix TestResettableInputStreamReader.
Adapt TestResettableInputStreamReader to Java 8.
Workaround to TestFileChannelRestart failing on Travis CI.

See https://travis-ci.org/Stratio/flume/jobs/36775304#L6186
This exceptions seems to occur occasionally but it should
be inocuous.
Fix TestLog.doTestMinimumRequiredSpaceTooSmallForPut.

Travis CI had problems executing this test as is:
https://travis-ci.org/Stratio/flume/jobs/36758319#L6178
Update apache parent pom to version 15.
travis: Raise ulimit for new threads.

Solves Travis CI exception on oraclejdk7:
https://travis-ci.org/Stratio/flume/jobs/36814709#L5747
https://github.com/travis-ci/travis-ci/issues/2496
[FLUME-2486] Add delay after cmd execution in TestExecSource.

Fixes test fail on slow platforms.
https://travis-ci.org/Stratio/flume/jobs/36817397#L6143
[FLUME-2203] Add jsr-305 dependency.
[FLUME-2286] Upgrade Guava to 17.0.