Added phrase-based test case. Phrase-based decoder (#172) functioning.

test/decoder/phrase/config

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+tm = phrase pt 0 rules.1.gz
+lm = kenlm 5 true false 100 lm.1.gz
+
+mark-oovs = false
+pop-limit = 10
+top-n = 1
+
+output-format = %i ||| %s ||| %f ||| %c
+
+include-align-index = true
+reordering-limit = 6
+
+# And these are the feature functions to activate.
+feature-function = OOVPenalty
+feature-function = WordPenalty
+feature-function = Distortion
+feature-function = PhrasePenalty -owner pt
+
+OOVPenalty -100
+Distortion 0.114849
+WordPenalty -0.201544
+PhrasePenalty -0.236965
+tm_pt_0 0.0370068
+tm_pt_1 0.0495759
+tm_pt_2 0.196742
+tm_pt_3 0.0745423
+lm_0 0.204412452147565

test/decoder/phrase/corpus.es

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+una estrategia republicana para obstaculizar la reelección de Obama 

test/decoder/phrase/output.gold

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+0 ||| a strategy |0-1| republican |2-2| to hinder |3-4| reelection |5-6| Obama |7-8| ||| Distortion=0.000 WordPenalty=-3.040 PhrasePenalty=5.000 tm_pt_0=-9.702 tm_pt_1=-10.800 tm_pt_2=-7.543 tm_pt_3=-8.555 lm_0=-19.117 ||| -7.496

test/decoder/phrase/test.sh

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+#!/bin/bash
+
+set -u
+
+cat corpus.es | $JOSHUA/bin/joshua-decoder -threads 1 -c config > output 2> log
+
+# Compare
+diff -u output output.gold > diff
+
+if [ $? -eq 0 ]; then
+  rm -f diff output log
+  exit 0
+else
+  exit 1
+fi
+
+