updated feature #7145: validation field for date/time question

DEV: added "validation" and respective tip field to the advanced
attributes
DEV: of the date/time question and changed em_manager_helper so field is
evaluated
DEV: and EM color coding is applied.
DEV: In connection with strtotime() one can for example enforce that
only dates
DEV: before "today" are entered: strtotime(self)<=strtotime("now")
Fixed issue #8119: (tsv-import) adv Q-attributes broken

DEV: non i18n-attributes are now set to lang=null
Fixed issue #8182: (quexf-pdf) labels for dual matrix question

Dev: advanced attributes dualscale_headerA and
Dev: dualscale_headerB are now used in the
Dev: quexf-PDF to label the response axes.

commit
Merge pull request #129 from mfaber/quexf_dualmatrixlabel205

Fixed issue #8182: (quexf-pdf) labels for dual matrix question
Fixed issue 8137: Relevance equation cannot be edited for unknown reasons
Release 2.05 RC1
Dev: remove a test setFlashMessage
Dev: sorry ....
Fixed issue : #08185: Large ranking question prevents following questions/submit button showing
Dev: memory issue if there are a lot of choice
Dev: use max_answers as limit of answers (like 1.92)
Dev: add the number of choice without JS
Fixed issue #7967: Without javascript there are still present button that don't work in the survey
Dev: except for change language and index : all work without JS in IE7
Dev: except for change language : all work without JS on modern browser
Dev: 151d03b child : default button for IE6/7. Please someone can test wth IE8 ?
Dev: only in JS actually
Fixed issue #7945: Error message "token mismatch" not being translated
Fixed issue #8060: CRSF issue when trying to copy or rename a template
Dev: Move sendPost frome endScript HTML to admin_core.js and adding csrfToken in most situation
Dev: not for ajax request
Merge branch '2.05' of github.com:LimeSurvey/LimeSurvey into 2.05
Dev: 151d03b child : bad idea to use NULL for diasbled
Dev: and better to fix htmlOption one time
Dev: Thank @mennodekker for recall
Dev: fix some issue in blobblueish with font-size very small on table
Dev: fix a javascript issue in template editor
Dev: PHP notice when survey start
Fixed issue #8178: Upload file is broken in 2.05
Fixed issue #8028: File upload dialogue window can't be styled (partial)
Dev: can replace doFileUpload() js function by own function in template.js
Dev Small bugfix for debugging purposes
Fixed issue #7610: Missing MSSQL support under Linux (pdo_dblib support)
Dev Part 2 - should be fully working now
Fixed issue #8183: (STATA) Wrong data type name

Dev: in STATA the data type is called int, not integer