Introduce server specific quote characters, so ParseTableStructure() and DeQuoteIdent() do not remove too much.
* bug report: http://www.heidisql.com/forum.php?t=12685
* broken in r4364, for fixing issue #2496

git-svn-id: http://heidisql.googlecode.com/svn/trunk@4397 560a3889-bb33-0410-9f33-43a8a102dc09
Leave SQL help action disabled as long as there is no selected connection. Fixes issue #3200.

git-svn-id: http://heidisql.googlecode.com/svn/trunk@4398 560a3889-bb33-0410-9f33-43a8a102dc09
Do not restore previous state of checkbox options "Drop database" and "Drop tables", leave them off when calling the export sql dialog. Fixes issue #3197.

git-svn-id: http://heidisql.googlecode.com/svn/trunk@4399 560a3889-bb33-0410-9f33-43a8a102dc09
Put session name into caption of login-on-demand dialog, so applications like Keepass can identify it. Fixes issue #3180.

git-svn-id: http://heidisql.googlecode.com/svn/trunk@4400 560a3889-bb33-0410-9f33-43a8a102dc09
Insert/update NVARCHAR/NTEXT/NCHAR contents with preceding "N", as MSSQL wants Unicode strings handled this way. See issue #2873.

git-svn-id: http://heidisql.googlecode.com/svn/trunk@4401 560a3889-bb33-0410-9f33-43a8a102dc09
Issue #3191: Use some standard TActions to implement a simple search/replace dialog in the popup text editor.

git-svn-id: http://heidisql.googlecode.com/svn/trunk@4402 560a3889-bb33-0410-9f33-43a8a102dc09
MSSQL wants single quotes escaped with a second single quote, not with a backslash. No clue how to escape joker chars in a WHERE clause.

git-svn-id: http://heidisql.googlecode.com/svn/trunk@4403 560a3889-bb33-0410-9f33-43a8a102dc09
MSSQL: Escape joker chars in conjunction with an "ESCAPE" appendix after the LIKE clause. See http://www.heidisql.com/forum.php?t=12747 .

git-svn-id: http://heidisql.googlecode.com/svn/trunk@4404 560a3889-bb33-0410-9f33-43a8a102dc09