[processing] new tool: random points in polygons (variable)

Work done for Faunalia funded by Prof. António Mira (University of Évora,
Portugal, Unidade de Biologia da Conservação) and Dr. Rosana Peixoto
init random generator before creating points
[processing] new tool: random points along lines

Work done for Faunalia funded by Prof. António Mira (University of Évora,
Portugal, Unidade de Biologia da Conservação) and Dr. Rosana Peixoto
[processing] new tool: points to path

Work done for Faunalia funded by Prof. António Mira (University of Évora,
Portugal, Unidade de Biologia da Conservação) and Dr. Rosana Peixoto
disable gap parameter as it is unclear if it useful
[processing] add new output type - directory
[processing] write additional output(s) compatible withg Azimuth and Distance
plugin
follow up 5ad518afd2. Better handling of temporary directories
another follow up for 5ad518afd2. Allow use of OutputDirectory in scripts
Make composer arrow, with and without markers, better fill the bounding box area
Merge pull request #1350 from geopython/MetaSearch-0.2.0

add MetaSearch 0.2.0 (https://github.com/geopython/MetaSearch/issues/53)
add option to set max thread count
get/set max. thread count in QgsApplication
[TRANSUP] pl: composer
Merge pull request #1363 from Cracert/i18n

[TRANSUP] pl: composer
restrict to node
change qsettings in qgsoptions, not qgsapplication
move internal python extensions to common directory and fix metasearch install
processing: remove adsense from otb descriptions
german translation update