Language Reference and Standard Library Reference updates

Signed-off-by: Richard Taylor <richard.taylor@lexisnexis.com>
HPCC-8297 Provide a callback mechanism when resizing a row

When using resizeRow to resize a buffer which is registered with the memory
manager, there needs to be a way of atomically updating the memory buffer
variables.  Otherwise you can get inconsistent results or deadlock the
system.

Signed-off-by: Gavin Halliday <gavin.halliday@lexisnexis.com>
HPCC-8030 Java/Python/Javascript language support in ECL

Added support in code generator for pluggable external language support.

New syntax: EMBED(module, 'script'), or EMBED(module) script ENDEMBED

A module for embedding Javascript using the v8 engine is provided in the plugin
v8embed - this can be imported using IMPORT javascript;

Additional plugins to support embedding Python and possibly Java will follow.

Signed-off-by: Richard Chapman <rchapman@hpccsystems.com>
HPCC-8461 Configmgr - Fix filesBasedn of Dali and ESP to match LDAP

- Hide filesBasedn field in Dali component
- Hide filesBasedn field in esp services
- Automatically propogate changes to filesBasedn value in the LDAP
  component

Signed-off-by: Gleb Aronsky <gleb.aronsky@lexisnexis.com>
HPCC-8030 Java/Python/Javascript language support in ECL

Added plugin to support Python.

Signed-off-by: Richard Chapman <rchapman@hpccsystems.com>
HPCC-8445 Add Certify.

Fix HPCC-8445 Add Certify doc.
To add the HPCC Certification doc
to the documentation build

Signed-off-by: g-pan <greg.panagiotatos@lexisnexis.com>
HPCC-8461 Configmgr - Fix filesBasedn of dali and espsmc to match LDAP

- XSLs will populate filesBasedn for espsmc and dali
- XSDs will not contain the filesBasedn field for the UI

Signed-off-by: Gleb Aronsky <gleb.aronsky@lexisnexis.com>
HPCC-8030 Java/Python/Javascript language support in ECL

Reworked python embed manager to support functions, imports, etc.

Signed-off-by: Richard Chapman <rchapman@hpccsystems.com>
HPCC-8030 Java/Python/Javascript language support in ECL

Added java import plugin, and further cleanup on the others

Signed-off-by: Richard Chapman <rchapman@hpccsystems.com>
HPCC-8030 Java/Python/Javascript language support in ECL

Added boolean parameters/results. Also added an additional test for Java
case (including multithreading).

Signed-off-by: Richard Chapman <rchapman@hpccsystems.com>
HPCC-8630 Configmr -  Add htpasswd Option to ESP Authentication

- Add htpasswdFile field
- Add htpasswd authentication method

Signed-off-by: Gleb Aronsky <gleb.aronsky@lexisnexis.com>
HPCC-8030 Java/Python/Javascript language support in ECL

Fix some threading/signal issues in the java embed plugin.

Signed-off-by: Richard Chapman <rchapman@hpccsystems.com>
HPCC-8030 Java/Python/Javascript language support in ECL

Fix some threading issues in the Python embed plugin.

Signed-off-by: Richard Chapman <rchapman@hpccsystems.com>
HPCC-8637 - Make thorslave dali connection optional.

Only register thor slaves with Dali if configuration option
defined (Debug/@slaveDaliClient)

Signed-off-by: Jake Smith <jake.smith@lexisnexis.com>
HPCC-8630 Configmr - Add htpasswd Option to ESP Authentication

- Make default environment.xml htpasswd file location absolute

Signed-off-by: Gleb Aronsky <gleb.aronsky@lexisnexis.com>
HPCC-8645 Configmgr - Add attribute in XML view fails in IE

Signed-off-by: Gleb Aronsky <gleb.aronsky@lexisnexis.com>
HPCC-8445 Add Certify

Fix HPCC-8445 Add Certify doc.
To add the HPCC Certification doc
to the documentation build.

Signed-off-by: g-pan <greg.panagiotatos@lexisnexis.com>
HPCC-8633 Add mutex to control data access for preflight result

Sometimes, ESP EclWatch crashes when doing a preflight on a big
dev environment. The core dump shows that the problem happens
inside Cws_machineEx::setMachineInfo() with double free memory.
When doing a preflight, WsMachine service creates multiple threads
(one thread per each target computer). Every thread will call the
setMachineInfo() and add its preflight result to a shared array of
result objects. This fix adds a mutex to synchronize the array
access. I did many tests after the fix and no crash happened in
those tests.

Signed-off-by: Kevin Wang <kevin.wang@lexisnexis.com>
Merge pull request #3888 from jakesmith/slavedaliclient

HPCC-8637 - Make thorslave dali connection optional.

Reviewed-By: Anthony Fishbeck <anthony.fishbeck@lexisnexis.com>
Reviewed-By: Gavin Halliday <gavin.halliday@lexisnexis.com>
Reviewed-By: Richard Chapman <rchapman@hpccsystems.com>
Merge pull request #3894 from garonsky/issue-8645_add_attribute_fails_in_ie_310

HPCC-8645 Configmgr - Add attribute in XML view fails in IE

Reviewed-By: Richard Chapman <rchapman@hpccsystems.com>