http collector for many url response time

http collector to query data size and download time from HTTP/HTTPS urls
PgSQL collector - sslmode, has_admin, connections

Commit does the following:
* add support for sslmode
* don't exhausts PgSQL connections
* don't execute query/queries which require admin privileges(configurable)

For more info, please, see https://github.com/BrightcoveOS/Diamond/issues/607

Signed-off-by: Zdenek Styblik <zdenek.styblik@icflix.com>
changed collector variable name

stripped . and / from the variable name to be compatible with Graphite and Influxdb
create testhttp.py mock test for http collector
create index fixture
feat(ossec): new ossec agent status collector

Change-Id: Ic6915ee95d3923e35b7eb62af4e5925a1ccee15c
feat(openldap): new collector

Change-Id: Icfd92ac49aa4529a478b05b7344f66fe1de1c944
fix(nfs): now using the correct columns for datapoints
fixes https://github.com/BrightcoveOS/Diamond/issues/556

Change-Id: I3300feb4f319fffb77bba6f6d3fbf2d65bb75046
test(nfs): added fixtures to testcases

Change-Id: I82e7c4ceb2e4d87e24538612d76814c75562fec0
test(nfs): removing debugging

Change-Id: Ifb50e9271d5000a1e0d40766bc8c47ab0560b919
feat(mountstats): added sudo support and include filter

Change-Id: I7d791a1c6804d7a7035dd19bc51ad57025f361ce
fix(jcollectd): catching invalid datapoints and better escaping

Change-Id: Id2ba5e1cc6da30e5d8ce6607fda8149105a058e6
removed ':' from url names
moved the file into fiXtures directory
moved into fixtures
replaced hardcoded timestamp by time()
Merge pull request #631 from zstyblik/pr-20140528-pgsql

PgSQL collector - sslmode, has_admin, connections
Merge pull request #635 from rtoma/ossec

feat(ossec): new ossec agent status collector
Merge pull request #636 from rtoma/openldap

feat(openldap): new collector
Merge pull request #637 from rtoma/nfs-fix

fix(nfs): collector now uses the correct columns for datapoints