Merge pull request #199 from shabanovd/develop

bugfix: clear configuration cache before update
[test] - testcase for new range index case="[yes/no]"
Merge remote-tracking branch 'upstream/develop' into develop
Merge pull request #202 from zwobit/develop

Test for new range index with or without case="no"
[performance] New range index: bad performance when querying a single node from a large set of indexed nodes.
[bugfix] New range index: must filter result after index lookup to check if nodes are on correct axis.
[performance] Help query optimizer to correctly rewrite boolean "and" into multiple filters, in particular if indexes are available.
[ignore] commons-lang is not only required for the client.
[ignore] range:index-keys-for-field: add parameter to define max returned items to make it consistent with util:index-keys.
[bugfix] New range index: fixed missing context node exception.
[ignore] Remove message logged to system out.
[ignore] New range index: tearDown commented out in tests.
Merge pull request #204 from wolfgangmm/develop

Range index performance improvements
[bugfix] general comparisons: internal property is overwritten, which leads to failing or endless queries every second time the query is run.
Merge pull request #205 from wolfgangmm/develop

[bugfix] general comparisons: internal property is overwritten,