Add .gitreview and .gitignore

Change-Id: Ia6f4705eee0c92e1000cf8bd303189a7e350b862
Add php interpreter and runtime (version 0.0.1)

works only command 'echo' with strings and variables.

Patchset 2: added tests and function process_slashes()

Change-Id: I062ac9e6084e4afec15c82ae655d943ca217ed45
add debug options

debug is disabled by default and it added as options

Change-Id: Ife890f9b367869fc0f79dd5b7711fc13fcb27b97
fix problem with new line in debug mode

Change-Id: Ibdc7e69cc1b989688791d1fd2c420ae087c7270e
fix for interpreter

fix syntax error, unexpected T_ENCAPSED_AND_WHITESPACE in
echo "foo is $foo\n\n";

Change-Id: I11c28d1e5c055b3d6e2d0659f33256eb4ef95a98
Add support number and math operators + - * / (version 0.0.2)

sample:

echo 10 + 5 * 5; // 35

Change-Id: I2b4caf4bb01b52ded5f3c1c70152604dff469206
fix for math multiple params

fix for failed test function testRun_echo_math_params()
echo '10 + 5 * 5 = ', 10 + 5 * 5, "\n\n";

Change-Id: I8638fa21bbe373b90cd80c3a4abf7587416da3dc
fix for math with variables

fix for failed test function testRun_echo_math_variables()
echo "\$foo * \$bar = $foo * $bar = ", $foo * $bar, "\n\n";

Change-Id: I162e218cf308b7b97f0affc8ba0fc6d785010e9d
fix for math with union operator

fix for test function testRun_echo_math_union()
echo 10 + 5 . 5  * 9 . 4 - 5 . 8;

Change-Id: I982a546cb8ebcdaf7e9ace216575f35366df5aff
Consistency tweaks in preparation for adding extension to Translatewiki.net

Change-Id: I8644fc52b0cb89098eecaa51d8d683c90c0866f3
Localisation updates from http://translatewiki.net.

Change-Id: I2de04abbe95eabec0a37e65a39ea32ba45f52cf0
add math operators % & | ^ << >> (version 0.0.3)

now are supported all the mathematical operations

Change-Id: Ieded484f844c8791d8b54725b4591a5ee8c6f5cd
Merge "add math operators % & | ^ << >> (version 0.0.3)"
Localisation updates from http://translatewiki.net.

Change-Id: Iae6e0e50cb88d3d13d32fe4fa856aee2298674a7
add increment and decrement operators (version 0.0.4)

samples:
$variable++;
$variable--;
--$variable;
++$varaible;

Change-Id: Ia815bff8012716b0ebb01f5339bac5883b1567b9
Merge "add increment and decrement operators (version 0.0.4)"
Localisation updates from http://translatewiki.net.

Change-Id: I6f1222d9263eff88b22985cd37d9e7280f02b356
add parentheses (version 0.0.5)

echo (2 + 5) * 10; //  = 70

Change-Id: Ibef80651fadbe397fcb27520a970b4a1975fb415
Localisation updates from http://translatewiki.net.

Change-Id: Id7d05e775114f6e014aad8fec2bdd99616b2cdc3
add types and inverting operators (version 0.0.6)

examples:
 $a = ~5; // -6
 $a = (string)5; // '5'
 $a = (int)5.5; // 5

Change-Id: Id8980a6e1d2a82813dd4fbbe03f25f74fb42076e