Remove Elastic Search Adapter

New Major-Release because the support for the Elastic-Search was dropped.

Bugfix: treat whitespace replacement as unicode string

1.1.7

[BUGFIX] add u flag

1.1.6

decode html entities before cutting

1.1.5

fix multibyte issue in SearchWordHighlighter

1.1.4: Fix: broken prepare statement in MySqlAdapter for MySql > 5.7

MySql introduced a sql mode called only_full_group_by which broke
the prepare statement method. This is a workaround to be backwards
compatible.

1.1.3

fix a bug on index update

1.1.2

add setnames

1.1.1

some bugfixes

1.1.0

add indexName

1.0.3

improve SearchWordHighlighter