issue #580 : support for configured TLS and cipherSuites

[Krishnadas Menon (pheenomenon)]

This fix is for #580
This PR has fix as per #2 below.

Few options to fix this are:
1] stop setting ConnectionManager and set useSystemProperties() while building HttpClients, in which case HttpClientBuilder will invoke the code to read systemProperties.
reuseStrategyCopy = new SSLConnectionSocketFactory((SSLSocketFactory)SSLSocketFactory.getDefault(), keepAliveStrategyCopy, targetAuthStrategyCopy, (HostnameVerifier)proxyAuthStrategyCopy);

2] Another approach is to update EwsSSLProtocolSocketFactory.build() to support the call to SSLConnectionSocketFactory constructor using SSL protocol and cipherSuite.

[Codecov (codecov-io)]

Codecov Report

Merging #628 into master will increase coverage by <.01%.
The diff coverage is 33.33%.

@@ Coverage Diff @@## master #628 +/- ##
============================================
+ Coverage 10.43% 10.43% +<.01% - Complexity 0 471 +471 
============================================
Files 550 550 Lines 20436 20444 +8 Branches 2626 2084 -542 ============================================
+ Hits 2132 2134 +2 - Misses 18151 18155 +4 - Partials 153 155 +2

Impacted Files	Coverage Δ	Complexity Δ
...ervices/data/core/EwsSSLProtocolSocketFactory.java	59.09% <33.33%> (-19.49%)	6 <1> (+6)

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[Krishnadas Menon (pheenomenon)]

André (@serious6)Vladislav Bauer (@vbauer) wondering if you had some feedback on this fix.

[Krishnadas Menon (pheenomenon)]

André (@serious6)Vladislav Bauer (@vbauer)Victor Boctor (@vboctor) I have squashed the separate checkins to a single one. Please let me know if you recommend anything more on this.

[Krishnadas Menon (pheenomenon)]

Hello experts, André (@serious6)Vladislav Bauer (@vbauer)Victor Boctor (@vboctor) any inputs here will be appreciated.

[Krishnadas Menon (pheenomenon)]

Hello experts, André (@serious6)Vladislav Bauer (@vbauer)Victor Boctor (@vboctor) any inputs on when you guys plan to release the latest build.

[Krishnadas Menon (pheenomenon)]

Hello experts, André (@serious6)Vladislav Bauer (@vbauer)Victor Boctor (@vboctor) any inputs on when you guys plan to release the latest build.

[Krishnadas Menon (pheenomenon)]

Hello experts, André (@serious6)Vladislav Bauer (@vbauer)Victor Boctor (@vboctor) any inputs on when you guys plan to release the latest build.

[Kenton Gray (kentongray)]

so sad having such great prs go unnoticed, can you please allow a 3rd party maintainer