blog proofreading

[doc] backport part 3 & 4 of the sytweb's tutorial + to be published part 5

[test] missing future imports

[test] fix typo

[schema test] fix tests broken by 6861:9d4e11d6e783 (missing data files and not removed deprecated/broken test)

[vreg] check for identical app objects when replacing Prevent from weird behaviour when you badly wrote vreg callback

[docstring] minor: add warning about entity cache for rql_condition selector

[selectors] minor: use similar __repr__ implementation for selector instances

[tests] new unit tests about score_entity selector (inscore machinery)

[tests] use migration api to create workflow Prefer high-level migration api thru admin session instead of raw rql in helper method

[c-c delete] closes #1433117 and other flavours where we don't want to crash on error

[after edition ui] closes #1381425: Wrong message : 'entity edited (click here to see created entity)'

[i18n] cleanup catalogs

[adapters] fix #1424467 caused by precedence of bw compat method while the adapter is concret for a given class

[c-c delete] add quote on db drop statement to be more robust to exotic database names

[ajax] apply Ronan Dunklau patch closing #1433305: loadRemote js function failure on Firefox 4 with upper cased base domain name

[schema] ease understanding of schema naming error

[db-create] we should always ask db user that should be used when special privileges are required

[entity] fix some docstrings

[js] always lowercase baseuri #1433305

[rset] add utility method to get entities and attributes from any rset

[url publishing] evaluate url rewrite rules before rest path so one may easily override schema based urls

[ui, index page] drop useless 'schema entities' table

[views] delete ``permission`` tab in ``SchemaView``