added handling for complex inline values

meaning inline values containing commas (see tests for examples)

this is note being used anywhere yet
improved handling of complex inline values

now supports both with and without whitespace after delimiter - except
for one special case (cf. tests)
renamed internal variables, updated/clarified comments
Fixed problems with no language configured

See #156
added support for labels with commas
improved encapsulation of inline-value handling

by using the new helpers introduced for complex inline values
Merge branch 'master' into comma-separated-labels

Conflicts:
	app/models/collection/base.rb
	app/models/concept/base.rb
Revert "improved encapsulation of inline-value handling"

breaks a lot of tests because it is applied to more than just labels

This reverts commit 428600462fe87c497e019142b0224b6cd77c5b5f.
Merge pull request #156 from innoq/empty_languages_configuration

Crashing iqvoc by configuring no language
made "contains" search mode the default

fixes #158
Replaced `availiable_languages` by `note_languages`

`availiable_languages` have been a superset of all languages searchable and useable in note languages. The new implementation uses a configuration option `note_languages` for notes and a helper method `Iqvoc.all_languages` for search. The helper method returns an array of all languages configured anywhere in the instance by summing up all languages from pref_labelings, alt_labelings and notes.
Fixed whitespace
ensured inline-value handling can cope with empty strings
restored appropriate helper for inline-label generation

this was erroneously removed with the previous revert
(2740ce33414b8543496eb06245c3e6e24145ff28)
Merge pull request #184 from innoq/delete_availiable_languages

Delete `availiable_languages`configuration option
avoid using camelized constant names
upgraded Capybara

necessary because older version wouldn't compile
fixed case of InlineDataHelper constants
fixed erroneous block ending
Merge branch 'master' into comma-separated-labels