enable inclusion of version symbol by using --enable-ld-version-script configure option for LibTIFF

{tools}[dummy/dummy] Aspera-CLI v3.7.2

New EasyConfig for PGI 16.1 with the GCCcore 4.9.2 toolchain behind it

{bio}[intel/2017a] FSL 5.0.10

{vis}[intel/2017a] matplotlib 2.0.2 Python 2.7.13 w/ Qt 4.8.7 (REVIEW)

A few new easyconfig files added 

sync with develop

{bio}[intel/2017a] VariantMetaCaller 1.0

also copy README for GapFiller

{data}[intel/2017a] xarray v0.9.5

{lang} [intel/2017a] Tkinter 2.7.13

{vis}[intel/2017a] matplotlib v2.0.2

* origin/develop:
  add missing patch for configparser
  add tuneR, seewave, soundecology extensions for R 3.4.0 (+ libsndfile as dep)
  adding easyconfigs: Spyder-3.1.4-intel-2017a-Python-2.7.13.eb, PyQt5-5.8.2-intel-2017a-Python-2.7.13.eb, SIP-4.19.2-intel-2017a-Python-2.7.13.eb
  add patch for BLAST+ 2.6.0 (based on patch provided in #4195)
  add patch for AUGUSTUS
  adding easyconfigs: BUSCO-2.0.1-intel-2017a-Python-2.7.13.eb, AUGUSTUS-3.2.3-intel-2017a-Python-2.7.13.eb, BLAST+-2.6.0-intel-2017a-Python-2.7.13.eb, EMBOSS-6.6.0-intel-2017a.eb, lpsolve-5.5.2.5-intel-2017a.eb, libharu-2.3.0-intel-2017a.eb
  get list of added/modified files using 'git diff --name-only' in Travis config
  Sync Py3 and Py2 easyconfigs of Keras
  Switch default backend to Theano for keras
  Keras/2.0.4 for Python 2.7.13
  adding easyconfigs: Octave-4.2.1-intel-2017a.eb, arpack-ng-3.5.0-intel-2017a.eb, FLTK-1.3.4-intel-2017a.eb, GLPK-4.61-intel-2017a.eb, GL2PS-1.4.0-intel-2017a.eb, Qhull-2015.2-intel-2017a.eb, qrupdate-1.1.2-intel-2017a.eb, GraphicsMagick-1.3.25-intel-2017a.eb, freeglut-3.0.0-intel-2017a.eb, gperf-3.0.4-intel-2017a.eb, xprop-1.2.2-intel-2017a.eb

add tuneR, seewave, soundecology extensions for R 3.4.0 (+ libsndfile as dep)

{lang,tools,vis}[intel/2017a] Spyder v3.1.4, PyQt5 v5.8.2, SIP v4.19.2

adding easyconfigs: Spyder-3.1.4-intel-2017a-Python-2.7.13.eb, PyQt5-5.8.2-intel-2017a-Python-2.7.13.eb, SIP-4.19.2-intel-2017a-Python-2.7.13.eb