[core] fix deadlock with TRUNCATE in postgresql.
[almighty] add SCHEDULER_MIN_TIME_BETWEEN_2_CALLS: the scheduler is launched at max every t seconds (t=5 by default), this avoids the scheduler to cause starvation with regard to the other modules.
[scheduler] fix some memory leaks.
[scheduler] add a cache to the resources tree computation: improve the scheduler speed by reducing the number of SQL queries.
[scheduler] add the expire/postpone/deadline job types to allow specifying constraints for jobs.
[scheduler] rename the placeholder job types: now use placeholder/allowed.
[scheduler] fix timesharing (adv reservation and *_placeholder schedulers).
[scheduler] add an option for noop/cosystem/deploy jobs to start on resources in standby, no wake-up is triggered (requires activating energy saving).
[oarsub] implicitly use the jobkey (-k) if the OAR_JOB_KEY_FILE env variable is set.
[oarstat] fix accounting display.
[oar_resources_init] fix a bug with HyperThreading and improve the user interface.
[oar_resources_add] make HyperThreading optional, fix long options and make nicer warning outputs for auto-offset.
[admission rules] rewrite the rule for the job type check.
[admission rules] fix a oaradmissionrules bug with MySQL when modifying a rule
[oar-node] fix the pid file in the init script.
[api] add some optimizations and rework the authentication configuration (Apache).
[api][drawgantt-svg][monika] fix Apache configuration (Apache 2.4).
[drawgantt-svg] new version with aggregation of resources and more.
[monika] add thread to the hidden properties.
[api] fastcgi config now uses suexec
[api] now use Apache environment variables when headers are not available
[api] optimization of /jobs query response time (especially efficient for mysql based installations)
[api] security fix:
HTML outputs which did not break on errors
